Happy to have my new Helix but....the UNDO does not work! I keep thinking it's user error. I've called into Line6 support at least 6 times. No help there. My problem is once I lay down a loop. It plays......forrreeeeeeeevvvveeeerrrrrr......I hit Undo, it keeps playing. I hit UNDO for 20 seconds, it still plays. I hit Start/Stop, and then UNDO, it keeps playing. I hit overdub in and then UNDO, it keeps playing. I hit ovedub out and then UNDO, it keeps playing. I called a long time user of the Helix and had him take a look at it. No change. ARRGGHHH!!!! Has anyone had this issue or is this a bug??? Thank you!