Total Commander

Same here:
- SONY Z1compact
- Android 4.4.4
- root
- TC for Android 2.05b3
- TC is Superuser via APP SuperUser
- editet platform.xml via App "SD Fix", also this app is Superuser

On my SD-Card is a folder like:

- abcdf/nomedia.

I try to delete them:

- check RW Button in TC, succesful
- RW Button is present with value "rw"
- i press long on the folder and check delete
- fail, dialog information "Konnte 1Datei/Ordner nicht löschen!", in the second line there is the name of the folder present

Any idea ?

Hmm, no idea - sdfix should do the trick. Could you try the same with beta 4, please?