Is there something with the jet script that forces the player into the seat or locks them in place while it moves? Or, can the player walk anywhere else on the jet after it flies? Seems like the seat isn’t causing this and the jet itself is.
You will need to provide more information on how the jet works before it’s possible to help you. Please provide code if possible, describe how the character feels “stuck” in more detail, and explain how you make this bug happen.
Additionally, verify the following:
The character’s Humanoid still has WalkSpeed = 16
There are no BodyMover instances inside any of the character’s body parts, such as BodyPosition
There are no constraints connected between the character and the jet