I have the same problem, it looks just the same, this is what I have detected.
when you start your print your print core says that is 220C, but the material is not coming out, so I put the lever up and i start to push the filament up, and the material is not coming out.
But when I press cancel to the printer and confirm removal I set up the print core to 220c and I push the material, the material comes out with any problem.
conclusion, it looks like is not sensing well the temperature