Iris quit unexpectedly error on app quit

[alexwkleung]

Sometimes when quitting Iris, a popup shows stating that the app quit unexpectedly.

Not sure what the root cause is, so I'll need to see the trace log when the app shuts down.

[alexwkleung]

Looking at the log, it seems like a segmentation fault is happening after quitting the app.

Again, not sure what is causing it to happen. Sometimes it happens and other times it doesn't. This makes it hard to reproduce consistently since I can't trigger the crash all the time.

Here are my assumptions:

1. Native events are not being handled when app quits
2. Functions and/or events are not handled when app quits
3. In addition to above, some processes are also not handled gracefully