[FedericoF]

Ok!.... I have done Recall , then tried the Touch as Offline as Online, and now everything works fine.

Yes, it is true that the unit wasn't used a lot in the last three months.
I will do Cycle more often now.

Does someone have more suggestions about this?.... Anyway now everything seems to work. (others controls such rotary knobs never had problems).

Thanks to everyone. If you have more suggestions to avoid this, please write me. Thanks to all!