So did your V2 report a person? I used to have a V2 set that way, but I later replaced it with a V3. So I don’t have anything set up that way ATM.
All that aside, I do have a motion sensor tied in to the same Bulb. So if the motion sensor sees something, or the Person Detection reports a person, the signal light lights. I’ve never had a failure to detect a person, but I don’t know how often the “person detection” is the reason for the detection. The PIR motion sensor is much faster.
So in the failures, did the light fail WITH a confirmed person detection? That would be the difference between a poor rule implementation, and a poor person detection. Gotta focus the fix…