I have a new SMT-550X and am having the same issue. When running my first boards, I was having issues with two components. I chose to skip those two components. I have corrected the issue but no matter what I do, those parts are ignored when assembling. It isn't even attempting to place these two parts on this assembly even though other assemblies they are placed. For the life of me I can't find where to correct this issue. I've checked in the SMT run settings and have found nothing corrects this issue. Any suggestions would be greatly appreciated. I suppose I could re-build the program from scratch but don't want to.
Edit to add: I can move this part to a different feeder location and it works. Still have no idea how to get two of my feeder locations to function though.