LaunchBox 14.1.0 Beta Thread

[eonder87]

are we add Translations on next beta?

[thoraiden]

This beta is nothing but impressive. Im loving the new plugins features as it seems to have somehow helped performance on both LB and BB. I am also happy that a long standing issue Ive been having for at least the past few versions of BB has been fixed. I run both standard MAME and another version to play Ultimate Mortal Kombat 3 Plus, MAME64+, the latter of which always stuttered and lagged whenever I launched it through BB. With the new options to run in windowed fullscreen and choose a backend it runs flawlessly now. Thanks for the hot fixes and progress! 

[crusadeRGP]

If I use the pause screen to view achievements the window will freeze and everything is unresponsive.

 

Theme: Omni

Game Pause:  PauseShift

 

Edited 23 hours ago by crusadeRGP

[Madhead]

Closing Azahar as well as a few other emulators now cuts back to LB/BB for a split second before the shutdown screen appears. Before the shutdown screen flowed from the black screen sandbox and hid everything underneath. Was much better. This new way might prevent apps from unlatching from the startup screen so the startup screen will now always commence after closing, but some of the transitions have been broken.

[Vader]

On 9/29/2026 at 12:47 AM, MysterNybble said:

Thanks a few observations:

• Big Box naturally waits for your startup video (TRON something or other) and according to these logs it's seems long - 96 seconds - does that seem right?  This might muddle the logs a little bit, so can you repeat this by pressing some keys/buttons during startup to "skip" the video?
• Make sure LaunchBox/Big Box are completely closed when you pull the logs the Debug log especially looks cut off (only 5 lines which I'd expect many, many more)
• Can you try the Default theme for the stutter issue? Want to confirm it's a Big Box issue or somethings specific to that theme. Let me know if Default behaves the same, worse, or better than what you're seeing in your preferred theme.

Thanks again!

Ok, so here are the new logs. I had some trouble trying to quit the startup video, but I was able to do it. Also, I tried the wheel with the default theme and still noticed the same stuttering. I have included a video that I took and you can see the stuttering.

MediaEngine 2026-09-30 07-19-21 PM.worker.log MediaEngine Client 2026-09-30 07-18-44 PM.log MediaEngine Client 2026-09-30 07-19-21 PM.log Debug 2026-09-30 07-18-40 PM.log Debug 2026-09-30 07-19-18 PM.log Debug 2026-09-30 07-19-53 PM.log Debug 2026-09-30 07-20-11 PM.log MediaEngine 2026-09-30 07-18-44 PM.worker.log

[SqHd]

8 hours ago, MysterNybble said:

Thanks - do you mean 14.0.1 (the hotfix released a month ago) or this beta?

That's said, it's odd, because I don't see anything in the code that would reset it for mame/emulators games. Can you close LB/BB, temporarily disable your plugins (just move the folders under \Plugins somewhere else for now), and then test again? I'm not confident it's a plugin issue, but worth ruling out. If that fixes, then you'll need to systematically bring back in your plugins to see which is causing it. The issue may still be on our side, but without knowing if it's a plugin (and which one) not much for me to look at yet.

I am going to add a "view my highscores" like thing to Beta 2, so stay tuned for that. Alternatively, just get better at the game and get into the top 100 😜

 

Yes. The 14.01 hotfix is when I noticed it. But after removing the 4 plugins on this beta, setting to "Installed" stays now. (I'll have to remember removing plugins when troubleshooting in the future.) Tomorrow I'll narrow it down to which one was causing the issue. Tonight I have to "Git gud" at old arcade games. 😄
Seriously though, I really appreciate the addition of a "view my highscores" thing! Been looking forward to something like that for a while.

[Madhead]

To iterate, I've found that whenever I exit via the emulators own exit process, like pressing escape or even alt-f4, the transition is seamless. It's only when I exit via the pause menu that it flashes back to LB or BB for a split second before the shutdown screen commences. This wasn't the case in the previous full release of LaunchBox.

[MysterNybble]

22 hours ago, eonder87 said:

are we add Translations on next beta?

I have something in the works for the translators to hopefully make it easier. Things are pretty volatile right now with the language so I'm not quite ready yet to ask for your help, but I'll be sure to let you know. You'll know more probably toward the end of next week.

[MysterNybble]

22 hours ago, thoraiden said:

This beta is nothing but impressive. Im loving the new plugins features as it seems to have somehow helped performance on both LB and BB. I am also happy that a long standing issue Ive been having for at least the past few versions of BB has been fixed. I run both standard MAME and another version to play Ultimate Mortal Kombat 3 Plus, MAME64+, the latter of which always stuttered and lagged whenever I launched it through BB. With the new options to run in windowed fullscreen and choose a backend it runs flawlessly now. Thanks for the hot fixes and progress! 

I'm printing off your comment and will ask my mom to put it on the fridge...

Thanks for the positive feedback and your specific successes. That windowed full screen is a game changer for sure.

[MysterNybble]

20 hours ago, crusadeRGP said:

If I use the pause screen to view achievements the window will freeze and everything is unresponsive.

 

Theme: Omni

Game Pause:  PauseShift

 

Would you do me a favor and...

• Test with the Default theme and Default pause theme, so we can know if it's in our theme code versus deeper down in Big Box itself
• Any specific game/emulator/store you remember testing that was causing the unresponsive window
• Once you can get Big Box closed, send me up some of your debug logs so I can see if anything is useful in there

Thanks so much!

[MysterNybble]

17 hours ago, Vader said:

Ok, so here are the new logs. I had some trouble trying to quit the startup video, but I was able to do it. Also, I tried the wheel with the default theme and still noticed the same stuttering. I have included a video that I took and you can see the stuttering.

MediaEngine 2026-09-30 07-19-21 PM.worker.log 101.13 kB · 0 downloads MediaEngine Client 2026-09-30 07-18-44 PM.log 741.97 kB · 0 downloads MediaEngine Client 2026-09-30 07-19-21 PM.log 55.7 kB · 0 downloads Debug 2026-09-30 07-18-40 PM.log 225.14 kB · 0 downloads Debug 2026-09-30 07-19-18 PM.log 839 B · 0 downloads Debug 2026-09-30 07-19-53 PM.log 98 B · 0 downloads Debug 2026-09-30 07-20-11 PM.log 98 B · 0 downloads MediaEngine 2026-09-30 07-18-44 PM.worker.log 2.88 MB · 0 downloads

You are a beast with the testing - I can't tell you how helpful all of this has been, thanks, thanks and thanks once more.

I got some ideas, some guesses, and some fixes on the way for beta 2 to hopefully help out some of these things, aiming for early next week on that.

[MysterNybble]

1 hour ago, Madhead said:

To iterate, I've found that whenever I exit via the emulators own exit process, like pressing escape or even alt-f4, the transition is seamless. It's only when I exit via the pause menu that it flashes back to LB or BB for a split second before the shutdown screen commences. This wasn't the case in the previous full release of LaunchBox.

The only things that might help me out further are...

• Are you seeing this in LB and BB or just one of them?
• As always, debug logs may be helpful, so send me what you got!

Thanks though, will do some investigation to see what I can find.

[eonder87]

25 minutes ago, MysterNybble said:

I have something in the works for the translators to hopefully make it easier. Things are pretty volatile right now with the language so I'm not quite ready yet to ask for your help, but I'll be sure to let you know. You'll know more probably toward the end of next week.

Thanks for the information. It would be great if we could see what the changes we made to the translation would affect or what the outcome would be.

[Madhead]

1 hour ago, MysterNybble said:

The only things that might help me out further are...

• Are you seeing this in LB and BB or just one of them?
• As always, debug logs may be helpful, so send me what you got!

Thanks though, will do some investigation to see what I can find.

Both LB and BB. I'm not sure which one you want so I zipped up all of the log files from today.

Debug 2026-10-01.zip

[AzgoRAth]

On 9/30/2026 at 2:15 AM, MysterNybble said:

Can you clarify a couple things for me...

"double control" - when it happens, does one button press move twice inside Big Box, or do Big Box and the window your other screen both react to the controller?

Would you mind sharing what other window you have that isn't the game or Big Box?

Big Box intentionally tries to ignore controller inputs when it does not have focus EXCEPT for bound hotkeys (exit game, pause screen, volume, screenshot, bring BB back up front). Are you asking for this to be different?

So when the double control is in effect, when i press up or down in the game for example, i can also hear BB navigation sounds for up and down. If I press A in the game, the game registers the A button being pressed but so does BB so BB launches the selected game again so i end up with 2 games running at the same time. No the correct behavior is for BB to not work when a game or other window/screen is the active window/screen. The other window(s) can be literally anything or even just the desktop on another screen. So with retroarch, it doesnt pause controls when its not the active window so I can play a game on 1 screen while browsing the net on another screen which is correct for my needs.

Edited 6 minutes ago by AzgoRAth