Consider a loader going FROM BELT TO CHEST (the directionality is important, it does not happen in the other direction for me) and copy and paste that entire blueprint somewhere else. When I try to build this blueprint manually by placing the chests first and the loaders afterward, the loaders will rotate so the chest-facing side becomes belt-facing and vice versa. It happens in editor mode as well when set to automatically build pasted blueprints. It doesn't happen when robots build the blueprints as far as I can tell, even when they place the chest first. I think the mod is trying to manually rotate the loader so it faces the correct direction upon placement or something, but it presses H instead of R if that makes sense.