H2D .6 TC nozzle(L) and .6 TC HF nozzle(R). Impossible to Sync?

After much frustration tuning the PETG HF in the right nozzle, I decided I’d print some other stuff in PLA Tough+. I cannot for the life of me calibrate the left nozzle, and previously I could not transition from Step 1 to Step 2 of the manual Flow Rate test when trying to calibrate the PETG HF.

I am still able to trigger the calibration process when I select the PETG HF on the Right, but the Left will not. (I am aware not to use the silk in the .6, it’s just still in there.)


(The screen on the printer matches this information exactly)

Anyone got an idea what I’m doing wrong?