I deleted an about 200GB big file but it still seems as the space is reserved for some reason. I tried clearing it with a bunch of commands I found but nothing worked for me (for files being keept in cache since they are still opened by some application). I also rebooted a bunch of times but nothing worked.
The parent folder still has the original size but it seems the subfolders are all the right size.
I hope someone has an idea why its still reserved or how i can get rid of it.