Welp, v3.1.1 is now up. v3.1.0 didn't last long.
Win10 tried to install the anniversary update today. Took me down for 6 hours. Back on 1511. Installed the iLok update. That took FOREVER to restart, but came back up OK.
Sweetwater are now shipping their Creation Stations with Win10. My Dell XPS 8500 is over 4 years old and is showing its Dell-designed weaknesses (like the MB won't report itself, so Arturia's Service Center borks). Maybe time for a replacement. Getting tired of this s**t.