I know im the only one this concerns but just FYI...
If a BT tm-15 ever malfunctions...the first thing you should do is "reset it" for lack of a better term...
Take the hopper off the marker or do this with the marker upside down (so it doesnt fire) and point away from everyone...unhook the air
Turn the marker off....turn the marker back on while pulling the trigger in s firing mode...(this will over ride the eyes)
fire the marker three/four times (should here solenoid clicking) air marker back up...fire 3/4 times...turn marker off
now it should all be reset...