Permission of folders inside sahredfolders change after reboot...

Hi,

I have several shares on a unionFS/Snapraid (3 Disks).

I discovered this:
If I just have added a new share via the GUI I get the permissions for all my shares like this:

drwxr-xr-x 11 root root 4096 Mär 5 12:27 . 
drwxr-xr-x 24 root root 4096 Feb 14 12:02 .. 
drwxrwsrwx 4 root users 4096 Feb 4 12:09 AppData 
drwxrwsrwx+ 2 root users 4096 Feb 7 12:53 BackupAll 
drwxrwsrwx 4 root users 4096 Feb 4 14:41 FabianDaten 
drwxrwsrwx 3 root users 4096 Feb 11 15:40 FabianTest

This is how it should be and how I want it.

If I reboot, the permissions change like this:

drwxr-xr-x 11 root root 4096 Mär 5 12:27 . 
drwxr-xr-x 24 root root 4096 Feb 14 12:02 .. 
drwxr-xr-x 3 root root 4096 Feb 4 13:45 AppData 
drwxr-xr-x 2 root root 4096 Feb 4 09:05 BackupAll 
drwxr-xr-x 2 root root 4096 Feb 4 09:03 FabianDaten 
drwxr-xr-x 2 root root 4096 Feb 23 22:08 FabianTest

This is NOT how it should be!

What is going on here? Any idea how I could change this?

Interesting thing is, that it changes back to normal if I ad a new share via the GUI. All permissions change for all old shares?
I have no clue where to look for a solution.

Any help or hint is very welcome.
If you need more information to solve this, I will do my best.

This is a more detailed explanation of this thread:
No files shown in shared folders - but in SMB?
The old one did not get any further and was on the "wrong track"...so somebody could delete it please.
I dived deeper in all this an figured out the problem - this is why I made a new thread. Hope this is OK.

Thanks.
Fabian

Is this problem connected - or the same???
MergerFS folders not mounted in /sharedfolders

I am digging deeper an will report back.
Thanks.
Fabian