Hi, sorry for the noob question but I've looked around on the forum (is there a search feature?) and can't find the answer in the manual.. I currently have a condition on the pro 3 where only the sequence A led will turn red when pressed, and sequence A continues to play no matter which sequence button is pressed. The rest are lit white, and turn pink if pressed, but as mentioned, only sequence A continues to play. Could someone be so kind as to tell me what's going on with that? Thanks!