I attempted updating with SteamCMD, enabling auto updates, etc. and none worked. What worked was manually removing the container ("sudo docker compose down"), deleting /appdata/space-engineers/SpaceEngineersDedicated/* ("sudo rm -r /appdata/space-engineers/SpaceEngineersDedicated/*"), then rerunning "sudo docker compose up -d".
Posting this in case someone else has the same issue.
cd "/your/gitclone/DIR" # Change to this repo directory
sudo docker compose down # Lower the server
sudo rm -r /appdata/space-engineers/SpaceEngineersDedicated/* # Delete the files
sudo docker compose up -d # Raise the server
I attempted updating with SteamCMD, enabling auto updates, etc. and none worked. What worked was manually removing the container ("sudo docker compose down"), deleting /appdata/space-engineers/SpaceEngineersDedicated/* ("sudo rm -r /appdata/space-engineers/SpaceEngineersDedicated/*"), then rerunning "sudo docker compose up -d".
Posting this in case someone else has the same issue.