@ZenithSounds thanks I can see your email I’ve had a look through the logs you sent. Both seem to happen in the same plugin (MODO BASS 2) is this the only plugin that is crashing for you?
This does look like a crash we have seen in the past but to the best of our knowledge is fixed in the latest versions of JUCE. However, manufacturers will need to update the version of JUCE they are using, deploy that version, then users will have to download and install those updates to see this resolved.
I had an attempt at recreating the issue again by creating a plugin that fires a timer at 1ms intervals, I inserted 1000 instances of the plugin in a session, opened the session and quit the application multiple times, no issues for me. That being said I’ve tried this with older versions of JUCE without any luck either.