This is not bitbar problem, this is QT problem, that's why it cant be fixed by changing bitbar files.  It affects all windows QT clients compiled in that time.

It should be fixed when new ver is relased based on newer QT.

problem:
-QT not responding

reason:
-incorrect windows shutdown while running QT

quick fix:
- run some other coin wallet once, than run bitbar-qt

permanent fix:
-recompile using new QT
or
-wait for new version.