Is there any reason why an android build would switch the direction something moves?

I’ll try to explain in detail what is going on. My game has ragdoll characters falling onto various things when a player drops them. A particular object they can be dropped on are “conveyor belts” which is a blueprint consisting of several cylinders all rotating at the same speed in the same direction, thus moving their ragdoll bodies in the same direction. I have a level where 2 of the 3 ragdoll characters move in the expected direction when on these conveyor belts but the 3rd moves in the opposite direction.

Is there any particular reason why this might happen? When testing on PC, even in mobile preview it works as intended. Only on the actual android device will it move in the opposite direction.