U2 feeder skipping every few seconds

[Smooj27 0]

Ive started noticing a new problem with my Ultimaker 2. Every few seconds the feeder will skip just once throughout he whole print. After about an hour of printing it decides to stop extruding entirely and the feeder has moved to constant skipping. When i go to "move material" the filament comes out just fine, so I seem to get the idea that it is not a clogged nozzle. Any suggestions on how to fix this?