I recognized that the second hotend is also heating up to printing temperature even if it is not used for printing. This is similar to the problem of the second filament sensor sending a "runout" even if no second extruder is used for printing...
Left the z calibration for another day and thought I'd try a benchy. I think I might have to check the temperature settings that I had on my proforge mk 1 as I think the ones for the mk2 might be
too low for my filament. Lots of layer separation.
I use Simplify3D, I use a single extruder protocol if I only want to use one for that print job (and unplug the solenoid). For dual filament jobs I created a Dual Extruder protocol.
So either one heats or both heat.
I have no experience with Cura, but I’m happy and still tuning my processes.
yes, both runouts have to be loaded if plugged into touchscreen. Possibly if they were plugged into the main board this could be resolved but I believe Marlin currently has issues with this.