BATTLETECH - Infinite Loading loop/DLC not reading as installed

[SaberKat]

One line summary of your issue
Infinite Loading loop/DLC not reading as installed

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?
1.9
What DLC do you have installed?
Flashpoint,
Urban Warfare,
Heavy Metal

Please explain your issue is in as much detail as possible.
Updated to 1.9 at title screen, All DLC reads as "Available now" Instead of "Installed"

Upon trying to start a new campaign either by choosing standard or custom after selecting settings, immediately goes into an infinite loading loop
Have you tried verifying your files?
Yes

Steps to reproduce the issue
Update to 1.9 and launch game. Also happens when rolling back to version 1.8.1

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

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

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

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#/

Attach screenshot / video

 

[SaberKat]

Managed to fix the issue of the DLC not showing up with a clean uninstall/reinstall, but still having the loading loop issue

 

[AndrewT]

What antivirus app do you use? Add BattleTech.exe to the exceptions list of your antivirus app; ESPECIALLY if you have Windows Defender, add it to the Ransomware "Apps Allowed Through" list.

 

[SaberKat]

I'm not using an antivirus app at current

 

[AndrewT]

Unity cannot cope with apostrophes in any of the file paths in the game:

ModLoader [LOG] ModPath : C:\Users\Tria'Rae\Documents\My Games\BattleTech\mods\HBS\ModSample\mod.json

That causes this error:

SqliteException: SQLite error
near "Rae": syntax error

You'll need to rename your Windows user and associated Users folder to not use an apostrophe, or make a new Windows user and only play the game using that user.

All the best!