My bonus unit wasn't advancing and I think the bonus release lever was sticky causing the problem.
I broke the pivot screw on the release lever when removing it. Not sure if it was already cracked and was binding the lever, but it's broken now.
Anyone have an assembly diagram with part # ? I'll be calling PBR, but always like having the part number first. Or if you know of a source for a generic replacement screw, please let me know.
The lever is the horizontal piece, attached to the small spring in the pic below.