scooter123,
I don't think that could be it. In this case, the spent cartridge is not pulled back far enough to contact the ejector. Good or bad, the ejector is not in play here.
Look again at this picture:
It is clear that the expended case has not moved backward far enough to contact the ejector.
No, we may not have completely resolved this, but it's certainly not the ejector. This is a failure-to-extract and not a failure-to-eject.