Invaild key

[Traction6131]

Hello! So I tried to backup my main instance on a vm (for testing purposes), and therefor ran the command:

docker exec -it --user 33 nextcloud ./occ backup:setup:import --key my_key_is_here < ./settings.asc

I've tried it multiple times with different files, always the same result:

In SetupImport.php line 126:
               
  Invalid Key  
               

backup:setup:import [--key KEY]

Inserting a random string does actually cause a different error, so they key must work to some degree. Is there anything special about entering the key? Thanks for helping :)