G-System freeze when going into "Edit mode"
My G-System IB Modified freeze when I’m using the Expression pedal, or when I go into “Edit mode”. It began last week when I was creating a new preset. My volume and expression pedals are Boss model FV-500 H. I tried other pedals, other cables, an other CAT-5 cable, nothing works. Can someone help? I bought my G-System in 2012 and it never happened until last week, never had that kind of problem.