I am sorry, I did not receive a notification about the new answers.

1. Game Version: FAF Client 2021.12.0, Supreme Commander FA latest version via steam.
2. Windows 10 Pro Bild 20H2
   3: Only Windows Defener
3. No
4. No
5. I have deinstalled all mods and I am only playing the default maps for testing
6. Played with the grafics and sound settings, played with single screen, disabled mods, installed all avialable driver updates for my system
   8: PC: Amd Ryzen 7 5800x, Geforce 1050 TI, 16 GB RAM, 1 TB NVME SSD

I am sure this is not caused by any hardware problems now. I managed to create a savegame just a few seconds before the game crashed. When I load this savegame, I am able to reproduce the problem. It will always crash after a few seconds.

The game log is missing in the log folder. Perhapbs because I always have to terminate the game using task manager?

In the other thread I read I should try the dev client but I did not find a download.