When turning a 12 string guitar make sure to use chromatic mode

And not “Guitar Mode”. Heed the lessons on my breaking two strings and use Chromatic Mode – I don’t know why that would be the case, but Chromatic notices the different notes correctly while guitar mode skips some entirely.

Guitar mode is supposed to do that entirely, but I guess on a 12 string you need the full chromatic range to make the fine adjustments to the octave strings.