I'm porting over a vehicle that has VTOL capabilities.
This vehicle has exhausts that change direction when it switches from normal flight to vertical flight and vice versa.
Vertices for exhaust effects (smoke and blur) are connected to the nozzles so that they follow them when they transition from one position to the other.
What happens is that the exhaust effects keep staying horizontal regardless of exhaust position as if their position and direction don't get updated.