I solved it myself at this point - deleting 100 tracks by hand and refeshing like a moron for the last 3 hours.
Thanks for the help tho. Appreciate.
I tried your solution too. Here is what happens:
This is a playlist containing the tracks I try to delete from Audio Manager/ My Audio.
I klick on the pencil than on the trash bin to delete...
Klicking OK to confirm. Returning to tracks to see if the tracks are still there...
No success. Tryed in the first place because I thought it's the right way to do it.
The post can be closed but the issue still remains :(