An attempt was made to access an unnamed file past its end... PDMWorks problem

Since the 2015 update, PDMWorks has been all sorts of messed up. It moves terribly slow and I keep getting the error message "an attempt was made to access an unnamed file past its end" when I try to change project on some files. This happens quite often. The only way I can fix this issue is to delete the file and check it in again.

Is there a solution to this mess? Do we know the cause?

I saw people were getting this problem with corrupted files, but my files seem fine. They open fine. They save fine. I can use them like normal. I only get this code when moving stuff within the vault.

Thanks.

SolidworksWorkgroup Pdm