I was finally able to get past calibration only to discover that the tuning function does not work

I'm playing on a pretty standard Epiphone Les Paul Black Beauty and have had zero issues as far as tuning and holding that tuning are concerned

My friends who bought it on Steam said that there were issues when tuning on PC versus a console, so I was a bit worried when I received this PC copy.

I have tried to tune the low E open and on the 12th fret as recommended on several blogs