Global tuning

I was messing about sending midi in and out from various sources and I seem to have locked my Shruthi with its global tuning set to 50, it sounds in tune at that setting when I play the same notes from other synths but I am sure it used to be at 0 with a plus or minus 50 can anyone tell me how to change it so 0 please the rotary knob for the tuning setting doesn’t do anything?

No worries I have sorted it :slight_smile: