The tuner in my HX stomp works fine except for one issue - it displays the wrong notes! When I play a low E it says it's a G, when I play A it displays C, the D shows F, the G shows Bb, etc. I've tried different basses, different presets, checked tuning of the bass of course, tried octave harmonics instead of the root note, scoured the manual, it's set to A=440, tried the different tuning modes, offsets are disabled. . .can't find a solution or even another person who is having the same problem. I have updated to latest firmware, and it's been doing this since I first got the unit about a week and a half ago. Defective unit maybe?