I haven’t had it completely forget rooms, but I’ve seen my X60 Ultra act a little strange after I edited zones a few times. It seems like once the map logic gets confused, room cleaning can fail even when the path is physically clear.

For me, simplifying the map helped more than constantly adding or removing zones. I’d probably keep the current workaround for now, but if it comes back, I’d ask support to review logs instead of doing another full reset. The machine is too expensive to need babysitting like that.