MC3 (FW3.11.1) Intermittent expression pedal glitching

Sometimes my MC3 is unhappy with my expression pedal in the heel position. It’ll be a smooth and stable taper until I hit 0%, then it will continually jump to 100% and back without being touched. No amount of calibrating will fix this. I can get the problem to go away with repeated power cycling and/or unplugging /replugging the expression jack.

I’m confident this is an MC3 issue because I’ve tried several different TRS cables and the expression pedal doesn’t give me this problem when connected to other pedals.

seems just like this MC8 problem here: MC8 Expression Pedal on FW 3.11.1 EXP flickering to 100% and back to 0% when no pedal movement - #7 by adamqlw

Yes, it is an issue in the v3.11 firmware. We will be releasing a v3.12 update for all the controllers.

another user with the problem here, with the Boss expression pedal connected Gravitas tremolo, when the pedal is at 100% it works well, when it is all the way up I hear continuous noises, I am happy to wait for an update

I just realized I have the same problem with my mc6 (after buying and trying multiple trs-cables).

Any idea when 3.12 will be released? I mean, this seems to have been an issue since april…

We’re porting all the updates from the MC6 PRO over to the MC3/6/8 now. Targeting the end of next week for the v3.12 beta firmwares for these models.

I tried the 3.11.2 beta (dated aug 18) and that didn’t solve the - occasional - problem. Eagerly waiting for 3.12…

We should have the v3.12 beta available this week for the MC3/6/8