Yeah, I've seen that one, no clue what causes it tho. 1/1000 odds perhaps? Thanks for reporting all of this, the video provided above will be very helpful!
I did some digging, and it turns out these two bugs are actually the same thing! I knew the floor could sometimes disappear, but your discovery of the door disappearing gave me a lightbulb moment, and now the bug is fixed. Thank you so much, I woulda never slammed into the door enough to find this!
