Based on my last assumption I'm able to reproduce this issue with simple test attached. If I comment out the line

  setup_logger(loggerB)

The everything works OK.

Once this line in - it's traceback.

I guess it's fair to say the bug in my code and one never should use this approach. On Linux it never traceback but I think it may have other unvisible issues.

I expect you mark this as "won't fix" but maybe you want to look at it.