BATTLETECH - Game will not launch

[Pytzoth]

One line summary of your issue
Game will not launch

What platform are you running the game on?
Steam

What operating system do you use?
Windows 10

Which version of the game are you running?
Latest Steam Version

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

Please explain your issue is in as much detail as possible.
Came back to the game (last definite successfully played December 2019, roughly 950 hours played on this rig previously - based on Steam Achievements), tried launching, Steam window comes up with "Allow game launch" popup window (which had never come up before). Game will not launch/successfully open, no matter what. Sometimes the cursor will change to the one used in-game, and sometimes the screen will go to black, but the game will always close/not fully open and go back to the Steam popup window. Pressing 'ok' will result in an endless loop of the game attempting to launch then asking permission to open. Pressing 'cancel' stops the loop.

Have tried doing complete clean uninstall (including registry edit) and reinstall, same thing. Have done this for all available Steam versions going back to 1.2.1. Depending on the version, the 'optional parameters' will change, but the result is the same.

No other games (Paradox or otherwise) have this issue. I've attempted to update my drivers, update windows, running as administrator, changing various background settings (Windows Defender, Norton, Razor Central). The first instance of this happening occurred on September 8, 2020.

Have you tried verifying your files?
Yes

Steps to reproduce the issue
On my rig, simply attempting to launch the game will result in this issue.

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]

No errors or problems evident in that log, but it does look a bit weird in that it starts again part way through.

Please try a **clean** reinstall:

- Remove the game from Steam (uninstall)
- Manually delete all these files and folders, if still there:

C:\Program Files (x86)\Steam\steamapps\common\BattleTech\
C:\Users\USERNAME\AppData\LocalLow\Harebrained Schemes\
C:\Program Files (x86)\Steam\userdata\USER_ID\637090\
(first move the \remote\C#\SGS#\ folder elsewhere to keep your save games)

- Install the game again
- add steam.exe and BattleTech.exe to the Whitelist of your antivirus app, whatever it is

If you still get any problem, please send me a new dxdiag.txt and output_log.txt , thank you.

 

[Pytzoth]

Tried uninstalling steam too, same result. I ran it for 3 or 4 times.

 

[Pytzoth]

Update: As I fell asleep last night I thought I should try installing the game to my c drive (instead of where all the other games are on separate drive). Downloaded today and it's working just fine now (or at least, it opened up to the main menu screen).

 

[AndrewT]

I don't know why that would make any difference - my game is on D: and works fine!

But I'm glad it works for you!