Side/corner brushes not spinning

I've had my x50 for a little over a week and it was doing great but today I noticed that there was dog hair along the floorboards and I noticed that the side brushes that extend to sweep close to the walls and corners are not extending or spinning. Has anyone else had this issue, and are there any tips or fixes I can do myself? Thanks

Same here. Leaving crumbs next to the kitchen cabinets

Make sure that area isn't marked as having carpet nearby.