If the bolt moves to the forward position when gassed there is a chance they can touch the detents causing them to fold slightly. However our detents will correct themselves if left for 5 - 10 minutes.
You can do this by either taking them out the marker and standing them upright, you will notice they return to perfect form after around 10 minutes.
Alternatively you can gas up your marker (Returning the bolt backwards), and leave it for 5-10 to do the same
Hope this helps.