Permissions after Radarr creates new folder

Hi,
I got an arr-stack up and running as docker on electric eel 24.10.2. My media folder is owned by “apps” and the combination of jellyseerr, radarr and qbt runs as expected. If a movie is downloaded it is copied from the download-folder into a sub-folder (movie - {year}) in the movie-folder.
Problem: If I access the folder from a computer with SMB I can not delete or add anything to this folder (eg metadata), I get permission denied - I am already member of the “apps” group. What did I miss? How can I write/delete in folders created by radarr?

Thanks for any pointer in the right direction

Did you set the “group write” permission (so the apps group can write/delete) and the “group set-group-ID” bit (the new folders are created with group permissions) on the folder? maybe there’s also a umask needed that keeps the “group write” permission intact for new folders.

I checked again at Datasets - datapool - media. Owner and group was “apps”, user is part of “apps” group. I reapplied the permissions (including child datasets) andlooks like this helped. But I suppose this is only temporary. The error is probably either by qbittorrent or radarr when creating the movie folder after completing the download and copying the files with the proper name into this folder. I will have to check if I can see the permissions radarr uses when creating a new folder under movies…

edit: I checked radarr, qbit und sonarr settings: user and group are set to 568 (apps) : this should be correct…hmmm. still no clue where to look next