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13.23 crashing on 2 PCs as well. Removed startup video and BigBox just sits at the BigBox logo splash screen and BigBox.exe is in taskmanager as a "background" task. .NET Runtime/Application Error/Windows Reporting info attached BigBox 13.23 crash.txt

Correct I have a startup video and it ran for like 3 seconds then crashed. I removed the video still wont load, basically same results.

I have a startup video. Removing it though doesn't seem to impact the issue as it still fails to open. Seems even launching Launchbox causes it to close down also now, not just BigBox. Still seems Video related though, as it opens the main menu, some still art displays but I don't see any video previews playing and then the software just closes itself. Odd though because I think I was able to get at least Launchbox to open before. I might have changed the Video Playback though to Windows Media Player prior to Launchbox also having problems now. After the startup video in BigBox though, it would be playing Category videos, so it would still be attempting to play something and sounds video related. Installing 13.23 Beta 2 corrects all the issues still. Hope that helps!

I am almost ready with my electron loader script. Should handle all formats (UEF, ADF, SSD), so tape/cassette/disk/floppy Just some minor fine-tuning left and then I will share it.

is CefSharp.BrowserSubprocess.exe allowed for outgoing traffic on your system? might be a try to explicitly allow it in windows firewall or in your own firewall (if u have any)

Simple Default Boxes for MAME/Retroarch + XCF Files (Updated) View File Very simple default boxes with MAME/Retroarch logos, similar to the Launchbox ones I posted earlier. I didn't make so many variants this time, but the included GIMP files now have some more stuff in there to work with, if anyone wants to make their own boxes with them (ex. use the plastic wrap layer, recoloring). It's not the cleanest 'template' in the world... but one can play around with it if they wish ^^; You can see a preview of what those look like in the screenshots. So far I'm content using the 'Default Boxes - [Name]' version of the files rather than the alternates just for my own use, but if get bored with them I may add more alt variants, more platforms, cart images, etc... For now, I'll just leave this here as is. Default 3D Box and Default Box folders go into Launchbox\Images\Platforms\PlatformName\ AND/OR Platform Categories\CategoryName\ Credits: MrRetrolust for the base box images, and to the creators of the MAME/Retroarch logos 👾└(^o^)┐ Submitter d66dle Submitted 08/21/2025 Category Platform Default Image Packs  

after reinstalling fresh LB install still no dice. Im pretty sure ive narrowed it down to a javascript issue. i cant open in manage storefronts popups without the blank screen...... i def have most up to date javascript installed on pc as well. So no clue how to fix this one. anyone has an idea please let me know

Thanks very helpful. From the sounds of it, can you confirm if you guys both have startup videos? If so, do you still get a crash if you remove them? Based on the errors, it's saying that your computers are having a hard time with hardcore decoding the videos, and we are working on a fix.

Sorry about that. It seems to have stoped working in dsmul but I can boot from it without launch box. Im sure I can trace back my sepsto get it to work with demul again Just not really sure if I have all the bios files in the dc folder in retroarch. It just tells me the bios files are incorrect with every game. The Namoi logo comes up then says, Error 01. This system is not assiaciable by main board.

Check that (when you think it). And also, is there still the same 3 options. I've never tried it otherwise, and only have the cab monitor and TV (so just 2). But when I'm going to play on the TV, I make sure it's on and ready to go before starting Big Box. I imagine you do also. The question then is, when you go to start BB, are both monitors already on ( plus the TV)? That is, do you ever have one or the other of the monitors not on when starting BB? (just thinking out loud troubleshooting thoughts)

It doesn't say it's "needed". It says it's "required". (semantics matter) And the green dot says, "File found". But you indicate it still doesn't launch, despite the apparent requirements are met. Does it work when launched directly from Demul? If so, do you have the proper command-line parameters in the Associated Platforms section for that platform? To insert a screen shot, take the screenshot with your favorite capture program. (copy the relevant area) Then here, put the cursor where you want to place it, and press Ctrl+V.

Yes you are right, updated the themes and it's perfect again. Thank you. I didn't know all my themes were out of date. Maybe this could be made more obvious in the future?

The link does not work. Did u change the location?

Faulting application name: BigBox.exe, version: 13.23.0.0, time stamp: 0x67fe0000 Faulting module name: coreclr.dll, version: 9.0.525.21509, time stamp: 0x67fe9d00 Exception code: 0xc0000005 Fault offset: 0x00000000002e5904 Faulting process id: 0x3DF0 Faulting application start time: 0x1DC12F1DD83661D Faulting application path: C:\LaunchBox\Core\BigBox.exe Faulting module path: C:\LaunchBox\Core\coreclr.dll Report Id: e2503ea3-ed4f-4b5c-9473-028235df74b8 Faulting package full name: Faulting package-relative application ID: Application: BigBox.exe CoreCLR Version: 9.0.525.21509 .NET Version: 9.0.5 Description: The process was terminated due to an unhandled exception. Stack: at Unosquare.FFME.Container.MediaComponent.DecodeNextAVFrame() at Unosquare.FFME.Container.MediaComponent.ReceiveNextFrame() at Unosquare.FFME.Engine.FrameDecodingWorker+<>c__DisplayClass3_0.<.ctor>b__4(Unosquare.FFME.Common.MediaType) at System.Threading.Tasks.Parallel+<>c__DisplayClass32_0`2[[Unosquare.FFME.Common.MediaType, ffme.win, Version=7.0.361.1, Culture=neutral, PublicKeyToken=null],[System.__Canon, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].<ForEachWorker>b__0(Int32) at System.Threading.Tasks.Parallel+<>c__DisplayClass19_0`2[[System.__Canon, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.Int32, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].<ForWorker>b__1(System.Threading.Tasks.RangeWorker ByRef, Int64, Boolean ByRef) at System.Threading.Tasks.TaskReplicator+Replica.Execute() at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object) at System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef, System.Threading.Thread) at System.Threading.Tasks.ThreadPoolTaskScheduler.TryExecuteTaskInline(System.Threading.Tasks.Task, Boolean) at System.Threading.Tasks.TaskScheduler.TryRunInline(System.Threading.Tasks.Task, Boolean) at System.Threading.Tasks.Task.InternalRunSynchronously(System.Threading.Tasks.TaskScheduler, Boolean) at System.Threading.Tasks.TaskReplicator.Run[[System.Threading.Tasks.RangeWorker, System.Threading.Tasks.Parallel, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a]](ReplicatableUserAction`1<System.Threading.Tasks.RangeWorker>, System.Threading.Tasks.ParallelOptions, Boolean) at System.Threading.Tasks.Parallel.ForWorker[[System.__Canon, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.Int32, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]](Int32, Int32, System.Threading.Tasks.ParallelOptions, System.Action`1<Int32>, System.Action`2<Int32,System.Threading.Tasks.ParallelLoopState>, System.Func`4<Int32,System.Threading.Tasks.ParallelLoopState,System.__Canon,System.__Canon>, System.Func`1<System.__Canon>, System.Action`1<System.__Canon>) at System.Threading.Tasks.Parallel.ForEachWorker[[Unosquare.FFME.Common.MediaType, ffme.win, Version=7.0.361.1, Culture=neutral, PublicKeyToken=null],[System.__Canon, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]](System.Collections.Generic.IList`1<Unosquare.FFME.Common.MediaType>, System.Threading.Tasks.ParallelOptions, System.Action`1<Unosquare.FFME.Common.MediaType>, System.Action`2<Unosquare.FFME.Common.MediaType,System.Threading.Tasks.ParallelLoopState>, System.Action`3<Unosquare.FFME.Common.MediaType,System.Threading.Tasks.ParallelLoopState,Int64>, System.Func`4<Unosquare.FFME.Common.MediaType,System.Threading.Tasks.ParallelLoopState,System.__Canon,System.__Canon>, System.Func`5<Unosquare.FFME.Common.MediaType,System.Threading.Tasks.ParallelLoopState,Int64,System.__Canon,System.__Canon>, System.Func`1<System.__Canon>, System.Action`1<System.__Canon>) at System.Threading.Tasks.Parallel.ForEachWorker[[Unosquare.FFME.Common.MediaType, ffme.win, Version=7.0.361.1, Culture=neutral, PublicKeyToken=null],[System.__Canon, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]](System.Collections.Generic.IEnumerable`1<Unosquare.FFME.Common.MediaType>, System.Threading.Tasks.ParallelOptions, System.Action`1<Unosquare.FFME.Common.MediaType>, System.Action`2<Unosquare.FFME.Common.MediaType,System.Threading.Tasks.ParallelLoopState>, System.Action`3<Unosquare.FFME.Common.MediaType,System.Threading.Tasks.ParallelLoopState,Int64>, System.Func`4<Unosquare.FFME.Common.MediaType,System.Threading.Tasks.ParallelLoopState,System.__Canon,System.__Canon>, System.Func`5<Unosquare.FFME.Common.MediaType,System.Threading.Tasks.ParallelLoopState,Int64,System.__Canon,System.__Canon>, System.Func`1<System.__Canon>, System.Action`1<System.__Canon>) at System.Threading.Tasks.Parallel.ForEach[[Unosquare.FFME.Common.MediaType, ffme.win, Version=7.0.361.1, Culture=neutral, PublicKeyToken=null]](System.Collections.Generic.IEnumerable`1<Unosquare.FFME.Common.MediaType>, System.Action`1<Unosquare.FFME.Common.MediaType>) at Unosquare.FFME.Engine.FrameDecodingWorker.<.ctor>b__3_0(System.Collections.Generic.IEnumerable`1<Unosquare.FFME.Common.MediaType>, System.Threading.CancellationToken) at Unosquare.FFME.Engine.FrameDecodingWorker.ExecuteCycleLogic(System.Threading.CancellationToken) at Unosquare.FFME.Primitives.WorkerBase.ExecuteCyle() at Unosquare.FFME.Primitives.StepTimer+<>c__DisplayClass22_0.<ExecuteCallbacks>b__1() at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(System.Threading.Thread, System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object) at System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef, System.Threading.Thread) at System.Threading.ThreadPoolWorkQueue.Dispatch() at System.Threading.PortableThreadPool+WorkerThread.WorkerThreadStart()

Yes, I'm saying I will go ahead and set the primary screen to #3, and it shows up on my TV. It will stick for a few days and then I start up BB and it opens on my monitor. I never changed the settings after that initial time. What I'm not 100% sure of (and I'll keep an eye on) is whether the monitor number in bigbox and retroarch actually change or not.

Not sure if this helps or I even grabbed the right info for you. Faulting application name: BigBox.exe, version: 13.23.0.0, time stamp: 0x67fe0000 Faulting module name: coreclr.dll, version: 9.0.525.21509, time stamp: 0x67fe9d00 Exception code: 0xc0000005 Fault offset: 0x00000000002e5904 Faulting process id: 0x2E60 Faulting application start time: 0x1DC12E77F458081 Faulting application path: M:\LaunchBox\Core\BigBox.exe Faulting module path: M:\LaunchBox\Core\coreclr.dll Report Id: 52a87f95-1536-4c8b-aee9-bb42ac3e69c7 Faulting package full name: Faulting package-relative application ID: Application: BigBox.exe CoreCLR Version: 9.0.525.21509 .NET Version: 9.0.5 Description: The process was terminated due to an unhandled exception. Stack: at Unosquare.FFME.Container.MediaComponent.DecodeNextAVFrame() at Unosquare.FFME.Container.MediaComponent.ReceiveNextFrame() at Unosquare.FFME.Engine.FrameDecodingWorker+<>c__DisplayClass3_0.<.ctor>b__4(Unosquare.FFME.Common.MediaType) at System.Threading.Tasks.Parallel+<>c__DisplayClass32_0`2[[Unosquare.FFME.Common.MediaType, ffme.win, Version=7.0.361.1, Culture=neutral, PublicKeyToken=null],[System.__Canon, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].<ForEachWorker>b__0(Int32) at System.Threading.Tasks.Parallel+<>c__DisplayClass19_0`2[[System.__Canon, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.Int32, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].<ForWorker>b__1(System.Threading.Tasks.RangeWorker ByRef, Int64, Boolean ByRef) at System.Threading.Tasks.TaskReplicator+Replica.Execute() at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object) at System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef, System.Threading.Thread) at System.Threading.Tasks.ThreadPoolTaskScheduler.TryExecuteTaskInline(System.Threading.Tasks.Task, Boolean) at System.Threading.Tasks.TaskScheduler.TryRunInline(System.Threading.Tasks.Task, Boolean) at System.Threading.Tasks.Task.InternalRunSynchronously(System.Threading.Tasks.TaskScheduler, Boolean) at System.Threading.Tasks.TaskReplicator.Run[[System.Threading.Tasks.RangeWorker, System.Threading.Tasks.Parallel, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a]](ReplicatableUserAction`1<System.Threading.Tasks.RangeWorker>, System.Threading.Tasks.ParallelOptions, Boolean) at System.Threading.Tasks.Parallel.ForWorker[[System.__Canon, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.Int32, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]](Int32, Int32, System.Threading.Tasks.ParallelOptions, System.Action`1<Int32>, System.Action`2<Int32,System.Threading.Tasks.ParallelLoopState>, System.Func`4<Int32,System.Threading.Tasks.ParallelLoopState,System.__Canon,System.__Canon>, System.Func`1<System.__Canon>, System.Action`1<System.__Canon>) at System.Threading.Tasks.Parallel.ForEachWorker[[Unosquare.FFME.Common.MediaType, ffme.win, Version=7.0.361.1, Culture=neutral, PublicKeyToken=null],[System.__Canon, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]](System.Collections.Generic.IList`1<Unosquare.FFME.Common.MediaType>, System.Threading.Tasks.ParallelOptions, System.Action`1<Unosquare.FFME.Common.MediaType>, System.Action`2<Unosquare.FFME.Common.MediaType,System.Threading.Tasks.ParallelLoopState>, System.Action`3<Unosquare.FFME.Common.MediaType,System.Threading.Tasks.ParallelLoopState,Int64>, System.Func`4<Unosquare.FFME.Common.MediaType,System.Threading.Tasks.ParallelLoopState,System.__Canon,System.__Canon>, System.Func`5<Unosquare.FFME.Common.MediaType,System.Threading.Tasks.ParallelLoopState,Int64,System.__Canon,System.__Canon>, System.Func`1<System.__Canon>, System.Action`1<System.__Canon>) at System.Threading.Tasks.Parallel.ForEachWorker[[Unosquare.FFME.Common.MediaType, ffme.win, Version=7.0.361.1, Culture=neutral, PublicKeyToken=null],[System.__Canon, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]](System.Collections.Generic.IEnumerable`1<Unosquare.FFME.Common.MediaType>, System.Threading.Tasks.ParallelOptions, System.Action`1<Unosquare.FFME.Common.MediaType>, System.Action`2<Unosquare.FFME.Common.MediaType,System.Threading.Tasks.ParallelLoopState>, System.Action`3<Unosquare.FFME.Common.MediaType,System.Threading.Tasks.ParallelLoopState,Int64>, System.Func`4<Unosquare.FFME.Common.MediaType,System.Threading.Tasks.ParallelLoopState,System.__Canon,System.__Canon>, System.Func`5<Unosquare.FFME.Common.MediaType,System.Threading.Tasks.ParallelLoopState,Int64,System.__Canon,System.__Canon>, System.Func`1<System.__Canon>, System.Action`1<System.__Canon>) at System.Threading.Tasks.Parallel.ForEach[[Unosquare.FFME.Common.MediaType, ffme.win, Version=7.0.361.1, Culture=neutral, PublicKeyToken=null]](System.Collections.Generic.IEnumerable`1<Unosquare.FFME.Common.MediaType>, System.Action`1<Unosquare.FFME.Common.MediaType>) at Unosquare.FFME.Engine.FrameDecodingWorker.<.ctor>b__3_0(System.Collections.Generic.IEnumerable`1<Unosquare.FFME.Common.MediaType>, System.Threading.CancellationToken) at Unosquare.FFME.Engine.FrameDecodingWorker.ExecuteCycleLogic(System.Threading.CancellationToken) at Unosquare.FFME.Primitives.WorkerBase.ExecuteCyle() at Unosquare.FFME.Primitives.StepTimer+<>c__DisplayClass22_0.<ExecuteCallbacks>b__1() at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(System.Threading.Thread, System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object) at System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef, System.Threading.Thread) at System.Threading.ThreadPoolWorkQueue.Dispatch() at System.Threading.PortableThreadPool+WorkerThread.WorkerThreadStart() Fault bucket 1934998382979828517, type 4 Event Name: APPCRASH Response: Not available Cab Id: 0 Problem signature: P1: BigBox.exe P2: 13.23.0.0 P3: 67fe0000 P4: coreclr.dll P5: 9.0.525.21509 P6: 67fe9d00 P7: c0000005 P8: 00000000002e5904 P9: P10: Attached files: \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.b094f876-ba37-4d2f-9023-2025964280d9.tmp.dmp \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.37c5d7d3-8203-44c3-9b74-58eaf5d422f5.tmp.WERInternalMetadata.xml \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.fc8e2a89-0adb-431f-8837-97e3807a739b.tmp.csv \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.9a68dd77-ef6a-4eb3-88d5-402ccf9114e2.tmp.txt \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.cb92917b-f0b2-4de3-946e-5be162feda3d.tmp.xml These files may be available here: \\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_BigBox.exe_5ed5096d654f2604a80d2bc11462e7fa43dca33_e8db1196_2e6822e6-6050-4cb0-b591-6591f280d2fa Analysis symbol: Rechecking for solution: 0 Report Id: 52a87f95-1536-4c8b-aee9-bb42ac3e69c7 Report Status: 268435456 Hashed bucket: e23b41dc623da36d6ada7ec6fa77cb25 Cab Guid: 0

Manually reinstalling 12.23 Official fixed the auto-install issue.

The 12.23 "official release" upgrade broke my Launchbox / Bigbox install. It launched two copies of the installer automatically, and I suspect one messed up the other. Going to try and reinstall in a minute. But currently, trying to launch BigBox or Launchbox does absolutely nothing. It won't even attempt to start.

Would be nice for anyone having this issue to open Event Viewer, go into Windows Logs > Application, find the 2-3 reports about the crash, usually a couple error reports and one info report, and post them here.

Simple MAME/Retroarch Default Boxes + XCF Files View File Very simple default boxes with MAME/Retroarch logos, similar to the Launchbox ones I posted earlier. I didn't make so many variants this time, but the included GIMP files now have some more stuff in there to work with, if anyone wants to make their own boxes with them (ex. use the plastic wrap layer, recoloring). It's not the cleanest 'template' in the world... but one can play around with it if they wish ^^; You can see a preview of what those look like in the screenshots. So far I'm content using the 'Default Boxes - [Name]' version of the files rather than the alternates just for my own use, but if get bored with them I may add more alt variants, more platforms, cart images, etc... For now, I'll just leave this here as is. Default 3D Box and Default Box folders go into Launchbox\Images\Platforms\PlatformName\ AND/OR Platform Categories\CategoryName\ Credits: MrRetrolust for the base box images, and to the creators of the MAME/Retroarch logos 👾└(^o^)┐ Submitter d66dle Submitted 08/21/2025 Category Platform Default Image Packs  

Thanks again Joe. You are the best. Ok here's a breakdown. I just added sega naomi back in clean to launchbox. Here's some screen shots so you can see what happened. The 1st file is giving the trouble which is the namoi.zip and thanks for letting me know about demul. Well I cant upload the screenshot so ill just tell you. The 1st one. The namoi.zip is not working. Tells me its green ligjt but has a red explatopn point as well. I re added the games back in and getting this error when I try to re add the zip... I get this error message. Failed to copy this deponacry file. Tells me its being used by another process. Even tried rebooting launchbox. UPDATE, i moved it out of the DC folder in retroarch. Still not working but error message went away. Now its just a green light with the red explatopn point saying the file is needed but its already added. I did get sega saturn and dreamcast working today on retroarch with the bios files. Thank you

Same here