Hello! I am having a problem with my creator pro where the right extruder will suddenly stop extruding part way through each print. I am trying to use ABS. When this happens, I cannot remove the filament or push it through. I disassemble the extruder, but there doesn't appear to any physical jam. I have tried: updating to the latest firmware, completely disassembling and cleaning the extruder assembly with proper reassembly (filament will load and unload like normal after complete reassembly), replacing PTFE tube and extruder head, replacing the insulation wrap on the heating block, and lowering print speed. I have tried printing up to 250 extruder temp, but to no avail. I am out of ideas and would greatly appreciate any help.