I am getting a weird behavior when shutting down Calibre. For example today, I "X"ed Calibre to shut it down, looked in task manager after a couple of minutes, and 3 worker processes were still running. I thought I hadn't left enough time to shut down, so I left my computer on, when out for 4 hours and checked again. They were still running in task manager.
When I started Calibre up without shutting down the tasks, everything looks ok...
Is anyone else seeing this type of behavior?