Possible extruder jam

So I had to print that instantly started under extruding massively as you see in the photo. It started about an inch from the top. I tried changing the filament and changing a different slot on my AMS. This had zero effect. All the settings appear to be normal, and the unit flushes filament to filament in what visually looks like a normal manner. Could there be something small jammed in the extruder? Is the first thing to try opening up the extruder? I appreciate your input that task is not easy for me. I’m just a DIY dad, so I wanted to check here first.