Like a FOOL, I allowed myself to press "update" when I got a new system update screen this morning, while I was half asleep. It rebooted and went to TWRP. I'm on @runningnak3d 's Nougat v30b update. I tried a wipe and reflash the 30b update, but each reboot goes only to TWRP. If anyone can help me sort this out, I'd appreciate it. Nothing like doing stuff wrong when you are waking up. Thanks johnm