I have a monoprice Voxel 3. I am having an issue where the gear grabbing the filament at the roll is pulling the filament, then pushing it back, causing the roll to rock back and forth. It also makes an "putt" sort of noise, when it pushes the filament back. I have observed the mechanism in the filament compartment, the toothed gear is rocking back and forth.
The printer also makes the "putt putt" noise without the gear rocking.