Out of the box, my FX100 expression (volume/wah) pedal is not having any effect on the sound. I can switch from volume/wah and notice a tone change when this happens, and I can control the volume/wah from App and hear the tone change, but actually moving pedal does nothing. I have updated to latest firmware, factory reset, and attempted to calibrate the pedal. When I calibrate the pedal following instructions here, on step "4" the 0-99 range does not show - no matter how I move the pedal only the number "04" shows (it is supposed to change from 0-99 depending on where the pedal is. Since I just bought the unit, planning on returning to Amazon and try again. Thoughts? Thanks.