Did you do anything to resolve this or are you shooting it as is?
With the help and generosity of a couple of the great members around here I was able to obtain the parts (and instructions) to do a cylinder replacement. I got lucky and it was a complete drop-in. Had it been a much older version it might have taken a lot more hand-fitting by a real gunsmith.
Cylinder and ejector star aren't original anymore, but it times, locks up, and shoots great and that's all that matters to me.