The title says it all, my friend can't seem to walk in my realm, they can hop around (like shown in one of the screenshots) and do normal things like attacking but they just can't seem to walk, every time they do, it only creates a particle effect in the ground

They've confirmed with me as well it isn't a controller issue especially since it has happened with another friend in the same realm, they also have operator status so I'm not quite sure why they can't seem to walk 

(All screenshots are either from me or my friend's perspective)