BATTLETECH - quits at start after 1min black screen

[Tudwal]

One line summary of your issue
quits at start after 1min black screen

What platform are you running the game on?
Steam

What operating system do you use?
11.6 Big Sur

Which version of the game are you running?
1.9.1

What DLC do you have installed?
Flashpoint, Urban Warfare, Heavy Metal

Please explain your issue is in as much detail as possible.
Black screen, cpu at 100% for some time, then cpu at 0% for some time, auto-quit.
(fatal stalled cross-thread pipe?)

Only system-wide change: uninstalled VirtualBox with kext. Still on Big Sur 1.6 since the summer.
Lastest steam installed/played in order: Battletech, Naheulbeuk, Battletech, Naheulbeuk, Behind the Frame Demo.

Have you tried verifying your files?
Yes

Steps to reproduce the issue
Click green start, wait a few minutes, does not reach campaign/career selection screen.

Previously froze once/twice at campaign load (over 10+ launches in the last 2 weeks)

Attach DxDiag (PC), System Info log (Mac), or run sudo lshw -html > specs.html and uploaded specs.html (Linux)
File(s) attached

Attach Output Log
Windows: \Users\YourUserName\AppData\LocalLow\Harebrained Schemes\BATTLETECH\output_log.txt
Mac OS: Users >{name} > Library > Logs > Unity > Player.log
Linux: ~/.config/unity3d/Harebrained Schemes/BATTLETECH/Player.log
File(s) attached

If the game crashed, please attach the crash file with the time stamp closest to the crash.
Windows: [Steam library folder]\steamapps\common\BATTLETECH\DumpBox
For v.17 and beyond try here: C:\Users\[YourUserName]\AppData\LocalLow\Harebrained Schemes\BATTLETECH
OSX: Macintosh HD > Users > [username] > Library > Application Support > Steam > steamapps > common > BattleTech > DumpBox
Linux: [Steam library folder]/steamapps/common/BATTLETECH/DumpBox
File(s) attached

If a save game was loaded at the start of the game session, upload it. Please make sure to upload the save game with the timestamp closest to when you loaded it.
Windows:
Steam: [Steam installation folder]\userdata[SteamID]\637090\remote\C0\SGS1
GOG: 'C:\Users\USER_ID\AppData\Local\GOG.com\Galaxy\Applications\50593543263669699\Storage\Shared\Files\C#\SGS#'
Vanilla:'C:\Users\USER_ID\AppData\LocalLow\Harebrained Schemes\BattleTech\C#\SGS#'
OSX:
Steam: Macintosh HD > Users > [username] > Library > Application Support > Steam > userdata > [SteamID] > 637090 > remote > C#> SGS#
GOG: Macintosh HD > Users > [username] > Library > Application Support > GOG.com > Galaxy > Applications > 50593543263669699 > Storage > Shared > Files > C# > SGS#
Vanilla: Macintosh HD > Users > [username]> Library > Application Support > unity.Harebrained Schemes.BattleTech > C# > SGG#
Linux:
Steam: /home/.steam/steam/userdata/[steamID]/637090/remote/C#/SGS#
GOG: /home/[username]/.config/unity3d/Harebrained Schemes/BATTLETECH/remote/C#/SGS#/
Vanilla: /home/[username]/.config/unity3d/Harebrained Schemes/BATTLETECH/remote/C#/SGS#/
File(s) attached

Attach screenshot / video
File(s) attached

 

[AndrewT]

From your description here the game used to work on this machine, is that right? Was there any change or update between the last time it worked and the first time it had this problem?

Regardless, as there are no solid clues in that log file, all I can think of to try is a clean rein stall:

- Remove the game from Steam (uninstall)

- Manually delete all these files and folders, if still there:

To find these, in Finder do cmd-shift-G to bring up the GOTO box. In there paste ~/Library/ :
~/Library/Application Support/Steam/steamapps/common/BattleTech/

⁨~/Library/Application Support/⁨unity.Harebrained Schemes.BattleTech⁩/

~/Library/Application Support/Steam/userdata/"ACCOUNT_ID"/637090/
(first move the /remote/C#/SGS#/ folder elsewhere to keep your save games)

- Install the game again

 

[Tudwal]

Well it's working today. I'll try your suggestion if it happens again.
The main change was installing/uninstalling Behind the Frame Demo, if it makes sense at all.

Thank you for your prompt reply.