When I change my Workspace tagfile (TagFileDir=), Slick sometimes doesn't ever close the original workspace tagfile.
At first, I didn't have a "TagFileDir" setting in my VPW.
From Workspace properties, I set it.
Slick created the new tagfile, but then it never closed the original.
After a few more tries I found that it sometimes does and sometimes doesn't.
You can verify this on Windows using "PROCEXP.exe", or simply trying to delete the old tagfile from a cmd window.