Thread joining issue. Fixed it, but not sure if it's really fixed since reproduction of the bug is non-deterministic.
The fix will be released with the new release. Please reopen if you still see this issue.
The Status line which shows which file the program currently working on shows 'Done' when the operation ends. Once in a very few run, the status line do not show 'Done' even after the operation is done. In that case it still shows the last file operated on.
