Hi i am facing a issue of extruder skipping steps, the printer prints the first layer great without any issue, starts to prints the second layer also without any issue but after some time is starts to skip steps, then I have to pause the print remove the filament, reinsert the filament, push and pull it slightly up and down into the hot end, and then resume it and then is starts working fine. But the the issue again start after sometime and have to do the whole process again. What could be the issue? Under extrusion in my case is not the issue I think.