Well Dayum... thank you Sensei!
I had tried unplugging my controller (Komplete Kontrol.) But didn't restart Logic afterwards. So did the whole prophylaxis- unplug controller, quit Logic, cold boot, Open Logic, re attach controller. And so far so good.
I have another little Arturia I use for key commands and arpeggios hooked up as well, but didn't unplug that.
Anyhow- Thanks for the fix!👌