I updated to 1.3.8; works fine. BUT, in the Octoprint settings, the "Save" button just has the little spinning wheel indicating it's doing something and pressing it does nothing. Basically, I can't save anything I do in Octoprint Settings. My webcam does work, but because settings is locked, I can't get any new plugins working, etc.
I'm accessing Octoprint via Google Chrome on a Mac. Didn't have this problem with the last version. Rebooted the Pi3, etc. No change.