[d03j]

I'm running calibre-server on Ubuntu 22.04.

When I need to do things like merging books or adding another user, I connect to my server using x2go and run run a script to kill the server service, wait until the process is no longer running, run calibre, wait until the process is no longer running, restart the server process.

It used to run without an issue but for some weird reason, I no longer seem to be able to quit calibre: after pressing ctrl+q, I get the shutting down message, the window closes but the process never dies.

Normally I kill it on the command line but today I decided to wait and see if it would die by itself. I've been checking it since I closed it and its CPU and memory usage have been dropping but, almost 5 hours later, the process is still alive.

Any ideas what might be going on / how to fix it?

Thanks.