Train seat glitches the whole train when a player sits on it

Hello there!

Recently I have decided to make a train system which utilizes Roblox’s physics. However there seems to be some issues whenever a player sits in the train seat, the train seems to stop moving.

All the seats and parts are welded to a train Base, the train base has the scripts that causes the train to move through giving it a force

robloxapp-20221204-1836365.wmv (2 MB)

Is there a VehicleSeat in this train? or only regular Seats?

only regular seats. I did not add any VehicleSeats.

Have you tried increasing the force since the train now has to also push your weight since once you are seated it might be adding more weight to the train than just standing?