I've had a couple of mod users report to me that their character sank into the floor a little bit when entering my modded cell. I also noticed that when I press CTRL+F to drop something, it also sinks slightly into e.g. the table I'm trying to drop it on to.

It made me wonder if there's some sort of game engine bug that's causing the collision to be 'out' by about 2 units?

Which mod is this. Is this the Riverwood house. I can see if it happens on the Xbox One. I can also test it on the PC as well.