To me, this sounds similar to the issue people were having when they never turned Sentry off and their vehicles thusly never went into sleep mode. I'm guessing that they've written in some sort of reset to allow you to start Sentry back up again after a failure without requiring sleep, but that the lack of sleep still causes a problem. I can't remember what the quick-start feature for enhance summon is, called, but it is in the Summon options, and the info for it indicates that it keeps the cameras on (same as Sentry does, so then they would never sleep even if you had Sentry off at home). AFAICT, when updating to v10, that is enabled by default, so turning it off (at least at home or work [I think it has those options, just like Sentry]) may prevent this from happening unless you have Sentry running for a lot longer.