The rotation is very small - did you feel the feeder motor for an entire minute of printing to make sure? It's possible that your flow rate is set to 1 (1%) and it is moving 100X slower than it's supposed to. This would be a Cura setting if your cura machine settings specify "rep rap" mode (not default, not likely, and not recommended) or that could be your material settings on the UM2 (that should be where your flow settings are). In the later case you can just check in the TUNE menu after it starts printing.
A video of the first minute of printing that shows the head moving then pan the camera to the feeder for a while then the last few seconds back to showing the whole printer. That might help us narrow down the issue.
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AlexHaysler 0
Update - motor isn't even rotating during prints but works fine when changing filaments. Anyone got any ideas?
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