I’m confused, frustrated

The snare drum on my Nitro Kit will only trigger a rimshot

I hope I can explain myself properly. I just got the nitro about three weeks ago and recently the snare pad doesn't respond properly. When I hit the center of the pad it makes only a rimshot sound and both lights light up on the module. Hitting the rim actually produces a louder sound but not a full snare drum sound. What the heck happened here? I tried to do a factory settings restore and it didn't fix it.
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