Weird expression pedal behaviour MC6 Pro

I’ve had an issue a few times of selecting a new preset within a bank where for some reason the expression volume has started at zero when the expression pedal position is toe down.
It seems to be pretty unpredictable when this will happen.
Any ideas?

@james any thoughts on what might be going on here?

Is this on the latest v3.12 firmware? I’d try changing the TRS cable first and see if the issue persists.