10.5 Windows will not Re-open on second monitor

Since upgrading, my temp and midi editor windows refuse to re-open on my second monitor after closing them, and always appear on my primary display. I’m using a 3 display setup.

Also, using this setup, the playback head continues to periodically disappear from one or more displays while In playback or record mode.

Any suggestions?

UPDATE - the window issue is fixed by turning on “screens have separate spaces” in System Preferences Mission Control settings. Seems to affect earlier Cubase versions as well - I had turned it off by accident. Still have the disappearing cursor though. I’ll make a video shortly. I suspect it’s a bug related to using 3 displays.