Resolved Deleting files doesn't free space

I just noticed a very annoying bug - I deleted a file (approx. 1GB), after that I emptied the trash. Sadly, disk usage in the disk utility app does not show any change.

The I went on an deleted a whole folder (over 3 GB) but the available disk space did not change.

Even when I delete a file using the rm command in terminal, I do not gain free space.

Whatsize does show me that my hard drive uses 84GB of space, but when I add up all the folders on the right side, I only get about 77GB.

It doesn't matter if Filevault full disk encryption is enabled or disabled, the problem still occurs.

Does anyone have the same problem?

Yes that's it! I was able to restore some file without having to plug in my time machine backup drive, so it must have been stored on my local harddrive.

That is definitly a nice feature for some people. But when I delete a file and empty the trash I usually like it to be gone and don't want it beeing stored somewhere on my harddrive. It feels like I'm loosing control over my hard disk space... Sadly I can't seem to disable this feature without disabling Time Machine completely, neither can't I control how long these local backups are beeing kept.