It sounds like you may have a partial clog in your nozzle. The shape you are describing could be indicative of a clog or some filament debris blocking the path. I would suggest trying a few more cold pulls or using a nozzle cleaning kit to thoroughly clean out any obstructions. If the issue persists, you may need to disassemble the hotend for a more thorough clean. Make sure to also check your extruder for any potential issues that could be causing under-extrusion.
potent otter
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