I have the problem that a master file has versions that don`t belong to it. How can I remove this link? I tried to mark both the master and the versions, then right click and remove manual version link. But that doesn`t work.
This only applies to manual versions. If the link is not manual, you cannot remove it that way.
If a file is "grabbed" by your version rule, you can only "break" the link by correcting your version rule (change the pattern that finds the versions to be more precise).
Or changing the name of one of these files.
Maybe only slightly.