Norfolk

I have exatly the same problem as Joko: "since i had the firmware for my ulimaker 2+ which came along with Cura 2.1.3 i am not able to change Material during Printing. (Pause - Change Material...) The U2+ remove the Filament but when the printer should use the new Material i got in the display flickering something like "heating - cooling - heating - cooling" in a endlos circle. So i have to shut down the printer to change the Material which is not what i want" except for that I have an ultimaker 2