Detector Rail Bug

I created a villager trading hall. They sit on mine carts on top of detector rails. When they are sitting there, they shake very fast and active the rails next to them. When I relog, it fixes it. But, on my realm, I have the same thing. But, I can't 'relog' a realm. This is very annoying and breaks my farm. Please can you fix it.

The many picture attached show the bug.