I have renters insurance and the batteries are fresh
I'm not crazy about diving into the breaker box. I've looked but not touched. I'll likely wait and see what the electrician says. Just odd behavior to me. I've had plenty of breakers pop over the years and have seen some odd things happen at gigs with overloaded circuits. But I wouldn't expect multiple permanently wired fixtures to all act weird (along with outlets). iirc though, most of the affected circuits are on the sub main, so I'm wondering if maybe it is just the connection from the main to that sub breaker, or if the sub breaker is wonky.
Hold my beer and watch this...