Can't delete/overwrite clips

I’d had an issue for quite a while when exporting/overwriting files on our NAS.
We use SMB for mounting since it works with our Active directory for permissions and is used on all our Macs. I know that in order to use it for the flame without issue, it has to be NFS.
Because of this I cannot overwrite or delted files on our NAS unless I exit Flame.
I’m not sure what the reason is. But it seems to have to do with some file locking within the flame processes. Flame doesn’t seem to be releasing the lock even though the process has finished.
Is anyone else dealing with this?