MK-312 multi adjust pot not working

Hello all,

i have managed to build my own MK-312 and beeing pretty happy about it.
There’s one thing that’s probally not working as it should. The multi adjust pot isn’t doing anything. I’am using the “ElectrodesReady” firmware.
I have resolded some pins and checked for connection problems. Also i have checked if the pot itself is giving different resistance. It’s all not looking suspicious.

Has anyone having the same issue?