Hello Chris, I added it to your report guessing that it might be the issue you observed. Now I see your setup is way more complex than my test.
To reveal some more information about your issue, you could install the package systemd-coredump, then in the journal should a backtrace appear after a crash. Additional a coredump should be collected for later investigation (coredumpctl list). More details might be available in the journal if dbgsym packages for related binaries are installed (more details in [1]). If additionally gdb is installed a coredump could be inspected by 'coredumpctl gdb [PID]'. Kind regards, Bernhard [1] https://wiki.debian.org/HowToGetABacktrace#Installing_the_debugging_symbols