Same issue here. Other game instances like Satisfactory or Among Us can be created but not started - unfortunately with no log output whatsoever inside the instance.
Log when Minecraft docker instance is created:
22:33:04
Using cached archive: /home/amp/.ampdata/instances/AMPCache-Mainline-2412.zip
22:33:05
[Info] AMPStart for Docker - v22.08.1
[Info] Performing first-time container setup...
usermod: user 'amp' does not exist
[Info] Container setup complete.
su: user amp does not exist or the user entry does not contain all the required fields
Failed to configure new instance Minecraft02 - Startup failure: Docker returned error code 1
Configuration Failed: Startup failure: Docker returned error code 1
Create Instance Failed: Startup failure: Docker returned error code 1
Log when I start any other docker instance:
22:34:39
:admin
16c40a99e974cdf1b5fce9bd689e1a94622a8f4bf7a685bc9316ce904bd2c277
^this output varies from every new startup.
The instance shows it is starting, when I try to connect it shows that it is not running.
I tried to reinstall docker using this guide: How do I configure AMP to use Docker?, but that didn’t work either.
/e: non-docker instances work like a charm. 