I’ve been experience a little bug for a few months now. Occasionally in dual mode in the visor (not sure if it happens otherwise), key commands: ⌘+O, ⌘+I, etc. are non responsive. I have to disable and re-enable dual mode to get the commands back. Also, I’d lose focus on either left or right pane of the visor where key commands are only working on one or the other. I have to re-enable dual mode to get full functionality back. Again, this only happens occasionally throughout the day. It isn’t a super big deal. I can definitely work around it, but it does interfere in my workflow enough for me to bring it up.