Jogwheel not working

Hi everyone,
suddenly one of the two jogwheels of my U-Mix Control Pro 2 is not working anymore in vinyl mode, i.e. no scratch anymore. The other one works properly.
Any help?
Thanks a lot!
Stefano
suddenly one of the two jogwheels of my U-Mix Control Pro 2 is not working anymore in vinyl mode, i.e. no scratch anymore. The other one works properly.
Any help?
Thanks a lot!
Stefano