I did set C10 as core with Ensemble offline, system starting as normal, no screen mentioning update being installed during startup. No message about available update in messages. Checked device manager, C10 version 2.435, system build 1449.

As soon as I bring Ensemble back online, I get the flashing envelope on the C10 telling be about available update, but then the rebooting starts, as before over and over again.

Control:10, Ensemble