Okay, thanks for the info @d00p.
Which permissions are needed for that? Read for the froxlor process should be enough, right?
Froxlor is running on php-7.3.31 (debian 10 distro php) under the apache2 www-data user. Froxlor is on latest version 0.10.36-1.
For example in one customer account the following folders are existing, but only two of them are shown in froxlor UI, but they have all the same permissions.
drwxr-xr-x 36 root root 4,0K May 2 2021 ..
drwxr-x--- 2 cardcal cardcal 4,0K Jul 5 08:54 backup
drwxr-x--- 8 cardcal cardcal 4,0K Dec 23 2018 folder1
drwxr-x--- 9 cardcal cardcal 4,0K Dec 26 2018 folder2
-rw-r--r-- 1 cardcal cardcal 0 May 2 2021 .htaccess
drwxr-x--- 2 cardcal cardcal 4,0K Jul 4 17:26 test
In froxlor UI only "folder1" and "folder2" are shown, "test" and "backup" is missing.
I have no idea why, because they have the same permissions. .htaccess is empty and should not have any impact. There are no other configs for "test" and "backup" such as directory protection.
Do you have any idea whats wrong here?