Yeah, I have the same problem after nearly every brew session. I have to completely disassemble the hopper before every brew to get out the grain stuck between the roller and side. I use the manufacturer's base, which I was told by the manufacturer was probably the issue. Something about the template's holes widening over time. That they use for making bases. I had hoped they'd replace the base but instead they suggested I drill the holes a little larger myself. I decided to leave it since there is screw up potential until I can make my own base.