I did a filament change (PLA) and noticed the new color wasn't extruding (used the wizard on the screen for the change). So, I followed the guide on clearing a clog. I got a good blob (2 actually) of red (previous color). I then went to do a filament load (Brown pla). I did the filament load and all seemed normal. I start the print and it was about 75% across the primer line before any filament was placed on the bed. The print then started and virtually nothing was coming out of the nozzle. I aborted the print and powered down. I removed the extruder tensioner and cleaned the drive gear with a toothbrush to get particles off the gear. I then powered the machine back up and did a filament load (brown PLA again) and It initially pulled the filament for a bit, then the filament stopped moving but the drive gear was still rotating. Nothing ever came out of the extruder this time. Do I have a clog still (somewhere) or something else? Since the gear was turning on the motor shaft I figured its secured and didn't check the tightness of that. It just doesn't seem to be grabbing the filament (after a certain point), which leads me to think I still have a clog somewhere. But, if that's the case, why did the brown extrude normally the first time after I did the suggested unclog procedure? Thoughts?