Noticed yesterday the seat of my third row (like what you sit on, not the seat back) was unlatched. Like I could easily lift it. Not sure if it’s always been like that or was lifted at service for some reason and not put back in properly. Any way, I was able to latch it back in at the front of the seat. Now wondering if the back should normally be latched somehow or is just held in place by the seat back. All looks sturdy and fine but thought I’d ask in case somebody here knows.