Reply to Instant Gratification & Akai MPD 24 Question

I'm using Instant Gratification on my Akai MPD24 and all works well except for one small issue. The 1st beatmasher button on Deck C doesn't disengage when I let it go, I have to hit it again and toggle it off.

I've tried looking under the hood of this beast to figure it out and fix it but can't see the solution. Any ideas?