LaunchBox 14.1.0 Beta Thread

[AzgoRAth]

 

59 minutes ago, Henstra1989 said:

Yes I was logged into epic games during my test this is what I found
I have 53 games installed on Epic games launcher inside their own library.
startup Launchbox 14.01
navigate Menu - Tools - manage - Storefronts
connect epic games account
navigate into Menu - Tools - import - Epic games.
inside Wizard,  next - platform Epic games - scrap as windows - next - next - next - next - next - wait parsing to epic games -  Checked installed - 53 games are marked - Finish

Everything goes how it needs to go
The games entries automatically are marked as installed
the redirect to epic games Library works when trying to launch the games
Install a new game inside Epic Games Storefront library
than on launchbox
navigate into Menu - Tools - import - Epic games
inside next - platform Epic games - scrap as windows - next - next - next - next - next - wait parsing to epic games -  Checked installed - 55 games are marked - Finish
so everything works perfect

Navigate
Menu - Help -Check for updates
New update is found u want to install version-14.1-beta-3?
yes

after Installation start the new Launchbox 14.1 beta 3  (doesn't matter if u use admin or not the problem is the same on both ends)
All epic games Entries are now marked automatically as "not installed"
u can still launch the games inside Launchbox and it redirect correctly to Epic games Storefront
but it seems it says Inside Launchbox that its not installed.
edit metadata from a laucnhbox game entrie and change the launchpath directly to game application exe file.
game entrie inside launchbox still marked as "not installed"
now if u try to add new games on the epic games storefront library launchbox automatic imports wont kick in
so I did this next.

navigate Menu - Tools - manage - Storefronts
reconnect to epic games account
navigate into Menu - Tools - import - Epic games.
inside Wizard, next - platform Epic games - scrap as windows - next - next - next - next - next - wait parsing to epic games - Checked installed - 0 games are marked - Finish

installed 2 more new games inside Epic games storefront library so I have now 57 games
on Launchbox navigate into Menu - Tools - import - Epic games.
inside Wizard, next - platform Epic games - scrap as windows - next - next - next - next - next - wait parsing to epic games - Checked installed - 0 games are marked - Finish
still no new entries

delete all games inside launchbox that has to do with epic games
now manual ad games to Launchbox game entrie and inside launchbox its still marked as "not installed"
also if now try to launch from launchbox a manual added game it redirect the launchpath to Epic games storefront trying to install the game even if the game already is installed on the storefront  library
launchbox game to are linked to epic games has a loop on trying to install....... than cancels itself out.
doesnt matter if the game is installed on epic games library itself
I tryed both installed and uninstalled.

What I tried on this Launchbox version-14.1-beta-3
I reinstalled Plugins for epic games
Reinstall Epic games storefront.
make sure "C:\ProgramData\EpicGames\Launcher\data\Manifests" are all there and file has corresponding rights.
that C:\ProgramData\Epic\UnrealEngineLauncher\LauncherInstalled.dat has correct entries and file has corresponding rights

Stil nothing

how to fix this problem?
I just reinstalled Launchbox Version 
I downgrade my Launchbox back to 14.0 and from there update up to LaunchBox-14.0.1 all seems to work as intended.
How do I break it again?
just upgrade to the newer beta version-14.1-beta-3

I hope this helps ^^

Debug 2026-10-17 10-24-14 PM.log 207.31 kB · 0 downloads Debug 2026-10-17 10-26-31 PM.log 52.25 kB · 0 downloads Debug 2026-10-17 10-28-34 PM.log 679 B · 0 downloads Debug 2026-10-17 10-28-35 PM.log 53.85 kB · 0 downloads Debug 2026-10-17 10-55-03 PM.log 195.63 kB · 0 downloads Debug 2026-10-17 11-22-47 PM.log 54.19 kB · 0 downloads Debug 2026-10-17 11-23-10 PM.log 138.75 kB · 0 downloads Debug 2026-10-18 01-15-40 PM.log 58.38 kB · 0 downloads Debug 2026-10-18 01-18-33 PM.log 48.58 kB · 0 downloads Debug 2026-10-18 01-41-12 PM.log 183.11 kB · 0 downloads Debug 2026-10-18 07-46-31 PM.log 179.7 kB · 0 downloads Debug 2026-10-18 09-14-00 PM.log 85.29 kB · 0 downloads Debug 2026-10-18 09-18-32 PM.log 47.67 kB · 0 downloads Debug 2026-10-18 09-23-56 PM.log 51.21 kB · 0 downloads Debug 2026-10-18 09-33-49 PM.log 138.16 kB · 0 downloads Debug 2026-10-18 09-49-52 PM.log 64.48 kB · 0 downloads Debug 2026-10-18 10-04-53 PM.log 137.53 kB · 0 downloads Debug 2026-10-18 10-56-59 PM.log 81.72 kB · 0 downloads Debug 2026-10-18 11-33-30 PM.log 49.51 kB · 0 downloads Debug 2026-10-18 11-38-03 PM.log 134.16 kB · 0 downloads Debug 2026-10-18 11-51-22 PM.log 71.99 kB · 0 downloads Debug 2026-10-18 11-58-16 PM.log 59.66 kB · 0 downloads Debug 2026-10-19 07-29-29 AM.log 59.47 kB · 0 downloads Debug 2026-10-19 07-33-31 AM.log 71.4 kB · 0 downloads Debug 2026-10-19 07-46-57 AM.log 230.12 kB · 0 downloads Debug 2026-10-19 07-49-20 AM.log 226.15 kB · 0 downloads Debug 2026-10-19 07-50-43 AM.log 218.57 kB · 0 downloads Debug 2026-10-19 07-51-49 AM.log 263.78 kB · 0 downloads Debug 2026-10-19 08-06-06 AM.log 99.85 kB · 0 downloads Debug 2026-10-19 08-18-46 AM.log 82.66 kB · 0 downloads Debug 2026-10-19 08-19-05 AM.log 62.67 kB · 0 downloads Debug 2026-10-19 09-33-21 PM.log 198.9 kB · 0 downloads Debug 2026-10-19 12-00-45 AM.log 55.38 kB · 0 downloads Debug 2026-10-19 12-02-12 AM.log 199 B · 0 downloads Debug 2026-10-19 12-02-13 AM.log 50.75 kB · 0 downloads Debug 2026-10-19 12-06-45 AM.log 63 kB · 0 downloads Debug 2026-10-19 12-10-19 AM.log 75.77 kB · 0 downloads Debug 2026-10-19 12-26-11 AM.log 85.4 kB · 0 downloads

I would suggest zipping them all up with 7zip or winrar and sending the zip file instead.

[JoeViking245]

1 hour ago, Henstra1989 said:

start the new Launchbox 14.1 beta 3  (doesn't matter if u use admin or not

As an aside, do not start LaunchBox as Admin.

In short: 
It tends to mess with things.

More detail: 
It breaks relative paths in the app. The OS tells us we were starting from some place in the OS folder structure instead of where it was actually launched from.

[Henstra1989]

35 minutes ago, JoeViking245 said:

As an aside, do not start LaunchBox as Admin.

In short: 
It tends to mess with things.

More detail: 
It breaks relative paths in the app. The OS tells us we were starting from some place in the OS folder structure instead of where it was actually launched from.

I tryed both after upgrading to the newer beta first normal after that reopened launchbox the second time as admin becaus the first time already gave does problems 

yea your right

Sorry AzgoRAth for the log files I putted them inside a archive

 

Edited Monday at 09:56 PM by Henstra1989

[Fursphere]

6 hours ago, JoeViking245 said:

As an aside, do not start LaunchBox as Admin.

In short: 
It tends to mess with things.

More detail: 
It breaks relative paths in the app. The OS tells us we were starting from some place in the OS folder structure instead of where it was actually launched from.

Relative pathing is the devil.  I despise it.

 

[Madhead]

15 hours ago, MysterNybble said:

Still would recommend doing a disk check on this drive and making sure you use that little windows eject thing that no one uses 😛 - a USB blip could cause it, and I'll look at the code from that angle to see if anything pops up.

If you do happen to see this happening again send me your debug logs and maybe something will jump out.

Thanks for the help. And I'll provide whatever I can if it helps you diagnose something. It's probably an edge case as I haven't noticed others report the same problem. I've ran chkdsk and stuff. One thing to also point out is that I keep noticing the odd art image mysteriously going missing whenever I use the "Games missing media" thing in the side bar. That's what I meant by refreshing. I have all the box art, clear logos and screenshots for all of my games in LB so I instantly can tell what's going missing when 1 or 2 images delete. Unsure if that's related to the image corruption thing. Just let me know which files to zip up and send to you so you can have a better idea of what's going on.

[launchretrogirl2562]

22 minutes ago, Madhead said:

Thanks for the help. And I'll provide whatever I can if it helps you diagnose something. It's probably an edge case as I haven't noticed others report the same problem. I've ran chkdsk and stuff. One thing to also point out is that I keep noticing the odd art image mysteriously going missing whenever I use the "Games missing media" thing in the side bar. That's what I meant by refreshing. I have all the box art, clear logos and screenshots for all of my games in LB so I instantly can tell what's going missing when 1 or 2 images delete. Unsure if that's related to the image corruption thing. Just let me know which files to zip up and send to you so you can have a better idea of what's going on.

did u ever try to completely remove all files inside your Cache-LB
Or as a test rename that dir to _old and see if that fixes anything?

[Madhead]

1 hour ago, launchretrogirl2562 said:

did u ever try to completely remove all files inside your Cache-LB
Or as a test rename that dir to _old and see if that fixes anything?

Whenever you select "Games missing media" in the side bar it automatically clears out the cache-LB folder. It's the artwork itself that gets corrupted or deleted, not just the cache files. But the cache files do record the corrupted image data and are displayed in the LB game grid as glitched. So whatever is happening is destroying the source image data, not just the file, as in the file doesn't fail to load in an image viewer, but it's all glitched upon viewing. The deletion issue is another thing, and I can confidently say none of these things were going on in the stable 14.0 release. But it may still be an edge case as I have my LB setup on an external USB SSD, a SATA SSD in a case type one. Whatever has changed in the beta has made it so that my particular type of setup is susceptible to these issues? I'm no programmer tho so I don't know.

[Kedog]

21 hours ago, MysterNybble said:

From these screenshots it looks like it's affecting more than just the badges - the poster art is also less crisp. Can you confirm a few things for me?

• What is your windows scale (DPI %) set to?
• How many monitors?
• Are they all at the same % scale?
• Which one of your monitors is LB running on when you see this?
• Which exact LaunchBox.exe did do the override on? LaunchBox\LaunchBox.exe or LaunchBox\Core\LaunchBox.exe

Thanks!

@MysterNybble Yes, you're right! It's the poster art and basically all the game details, and everything that’s displayed—the menus, and so on.

- Windows Scale to 150%

- One LG OLED C1 TV as Monitor

- i override the LaunchBox\LaunchBox.exe

I really hope it can be fixed, as the new version is truly great—but, of course, it doesn't look right as it is now. 

 

Thanks!

 

[MysterNybble]

44 minutes ago, Kedog said:

@MysterNybble Yes, you're right! It's the poster art and basically all the game details, and everything that’s displayed—the menus, and so on.

- Windows Scale to 150%

- One LG OLED C1 TV as Monitor

- i override the LaunchBox\LaunchBox.exe

I really hope it can be fixed, as the new version is truly great—but, of course, it doesn't look right as it is now. 

 

Thanks!

 

I am unable to reproduce this, but your screenshots are very obviously something forcing a 100% visual up to 150% thus why your flag 'fixes' it - but I have no idea why it thinks it's 100%. Some debug things I'd like you to try:

• Install a new copy of LaunchBox to a new folder, let it find some steam games/download media/etc. and without changing anything, does it look correct or blurry?
• Turn your compatibility flag off and open your original blurry LaunchBox, open Task Manager -> Details -> right-click a column header -> Select columns -> choose DPI awareness -> now tell me what it says next to your LaunchBox executables for that new column
• Does Big Box do the same thing?

Thanks!

[MysterNybble]

5 hours ago, Madhead said:

Whenever you select "Games missing media" in the side bar it automatically clears out the cache-LB folder. It's the artwork itself that gets corrupted or deleted, not just the cache files. But the cache files do record the corrupted image data and are displayed in the LB game grid as glitched. So whatever is happening is destroying the source image data, not just the file, as in the file doesn't fail to load in an image viewer, but it's all glitched upon viewing. The deletion issue is another thing, and I can confidently say none of these things were going on in the stable 14.0 release. But it may still be an edge case as I have my LB setup on an external USB SSD, a SATA SSD in a case type one. Whatever has changed in the beta has made it so that my particular type of setup is susceptible to these issues? I'm no programmer tho so I don't know.

Thanks, please do:

• Send me the logs next time it happens if you can notice it
• How that image was loaded (did you download it in app or place it directly), was it correct when it was first there, and if you did anything else during that session?
• Tell me if you have any plugins that may be touching images as well

Your setup isn't unique, but your symptoms do appear to be (which is why I keep going back to disk health, but you said that passed) so I'm not sure what would be causing it yet.

[Madhead]

1 hour ago, MysterNybble said:

Thanks, please do:

• Send me the logs next time it happens if you can notice it
• How that image was loaded (did you download it in app or place it directly), was it correct when it was first there, and if you did anything else during that session?
• Tell me if you have any plugins that may be touching images as well

Your setup isn't unique, but your symptoms do appear to be (which is why I keep going back to disk health, but you said that passed) so I'm not sure what would be causing it yet.

Yeah, as soon as I notice another corrupted image I'll send the latest logs. The Monkey Ball image I sent you was actually gotten by the SteamGridDB scraper plugin. But the corruption affects images from all sources, and only png files with alpha pixels like logos or 3D boxes or disc art. I've never noticed one be a JPG, if that narrows anything down. So since this happened a couple months ago pre 14.0 in a beta, and then suddenly fixed up in the stable 14 release, I don't think the plugin has much to do with it as I only installed the plugin like 2 weeks ago.  

[Jabb3rJaw]

On 10/18/2026 at 1:43 PM, MysterNybble said:

 

Thanks for the logs. According to them, Big Box didn't freeze this time. Around 9:20pm in the logs, while attract mode was running, something else took focus, which pauses the music and videos, and Big Box came back when you clicked a few minutes later. Nothing in the in the logs so it's possible something else grabbed focus. Anything else running on that cabinet (Steam, LEDBlinky, controller software, Xbox Game Bar, whoknowswhat)?

For the slow launch, the loading screen normally closes when the game's window appears, so the black part looks like it could be MAME itself starting up, perhaps waiting for some drives to spin up? If you send the logs from one of these where it happens? Do you know if this is new for 14.1 betas or was it happening in 14.0/before as well?

The slow start on the first started game  just started happening recently but not sure if it was last beta or the one before that. Here is a video using Retroarch and same thing happening. I’ve attached the logs and the video. Also for the freezing due to losing focus that just started recently as well. I never had an issue with it losing focus but I will try and see what’s taking focus on my end. 

 

 

 

 

MediaEngine Client 2026-10-20 06-27-12 PM.log Debug 2026-10-20 06-27-11 PM.log MediaEngine 2026-10-20 06-27-12 PM.worker.log Debug 2026-10-20 06-27-12 PM.log

[Jabb3rJaw]

@MysterNybble I am also having an issue with PC games. They start to launch then I get kicked back to the Bigbox wheel with the game still running when I exit Bigbox. Logs are attached.  

Debug 2026-10-20 07-44-38 PM.log Debug 2026-10-20 07-44-39 PM.log MediaEngine 2026-10-20 07-44-38 PM.worker.log MediaEngine 2026-10-20 07-44-39 PM.worker.log MediaEngine Client 2026-10-20 07-44-38 PM.log MediaEngine Client 2026-10-20 07-44-39 PM.log

[MysterNybble]

4 hours ago, Jabb3rJaw said:

The slow start on the first started game  just started happening recently but not sure if it was last beta or the one before that. Here is a video using Retroarch and same thing happening. I’ve attached the logs and the video. Also for the freezing due to losing focus that just started recently as well. I never had an issue with it losing focus but I will try and see what’s taking focus on my end. 

IMG_1731.mov 63.6 MB · 1 download  

 

 

 

MediaEngine Client 2026-10-20 06-27-12 PM.log 237.59 kB · 0 downloads Debug 2026-10-20 06-27-11 PM.log 206.62 kB · 1 download MediaEngine 2026-10-20 06-27-12 PM.worker.log 850.07 kB · 0 downloads Debug 2026-10-20 06-27-12 PM.log 1.33 kB · 1 download

From the logs LaunchBox saw RA's window in 3 seconds after you launched and handed it focus, and the loading screen closed shortly after. The black screen after that appears to just be RA's own window before it shows the game and MAME sort of did the same thing. If you know how, can you reboot (to reset all the windows caches), then try running RA/MAME directly to load the game to see if somehow this is something in RA/MAME. 

2 hours ago, Jabb3rJaw said:

@MysterNybble I am also having an issue with PC games. They start to launch then I get kicked back to the Bigbox wheel with the game still running when I exit Bigbox. Logs are attached.  

Debug 2026-10-20 07-44-38 PM.log 171.37 kB · 1 download Debug 2026-10-20 07-44-39 PM.log 1.33 kB · 1 download MediaEngine 2026-10-20 07-44-38 PM.worker.log 322.98 kB · 0 downloads MediaEngine 2026-10-20 07-44-39 PM.worker.log 104.23 kB · 0 downloads MediaEngine Client 2026-10-20 07-44-38 PM.log 79.02 kB · 0 downloads MediaEngine Client 2026-10-20 07-44-39 PM.log 31.27 kB · 0 downloads

For Days Gone, similar to above BB focused the game's splash screen in about 3 seconds after launch and never saw the game close but in this case Big Box came back within about 10 seconds. A few questions to hopefully help narrow this down:

• Edit Game for Days Gone and share the Application Path - curious what exe/steam path/etc is here
• Does it happen with this every time, or every PC game every time, or only some of them sometimes
• Do you know if 14.0 did this or prior to that / when did it last work ok (this lets me compare what changed between then and now)

Thanks!