There is a reason that only one cap looks like that, you need to identify it and fix it now
Do you remember if all the caps spun okay on the valve tips when you installed them? If so look elsewhere, if that one would not spin make sure the new one does
Some were and still are tight . Meaning some will spin loosely by finger and some not . I did not try to spin the tight ones with anything more than my fingers.
Could this be nothing more than excessive lash on that one valve? Could I have miss adjusted? And if I did could it do that damage in 25 to 30 passes? This is a fairly fresh engine with new springs that are correct for the cam . Maybe 70 passes in total .Only turns about 6800
Thanks for your response I will look closer
