Trouble setting up Expression Pedal in Nano

Just curious if anyone else had issues setting up an expression pedal in the Nano Cortex
I also own the Quad Cortex as well as other modelers so I am no stranger to setting up expression pedals.
When setting up mine in the Nano it would not recognize the full sweep of the pedal. I tried exp pedals from Dunlop, Ampero, boss and Mission (ndsp model). It varied from a sweep in the middle of about 10% and the next attempt at setting it, it would be at 94%. I had to keep plugging the trs cable in and out of the pedal in an attempt to get it to work. I eventually got it to function properly with a 100% sweep and it would work on all of the different pedals without having to do any further calibration.
My concern is that if I ever need / want to reset the device I may not get it to function again without having to repeat the same frustrating frustrating process which took about 2 hours.
I’m curious if anybody else has had a similar experience or if maybe I just have a faulty unit.