Yes I had a wire detent break off and do the same thing. It scratched the side of the bolt but that didnt change anything. If the chip on your bolt is sharp at all you may want to polish it to get rid of the edge. Otherwise its probably playable.
If the valve doesnt want to come out often it is because I have forgotten to pull the trigger. The end of the on/off pin sticks out just a little and catches on the body if you dont pull the trigger when removing the valve.
Properly tuned the level 10 is awesome. Tech your marker and remember that first game, you'll want to go back soon