Blood stones, or inert stones? There are some that are used automatically, and some which you can pick up and use later.

Can you talk to Zixzax? Does he have all the speech options he had when you first got to the End of Time?

Was he never at the entrance to the homestead when you teleporter there after finding (and using) the second star stone?

Skipping the clinic should not cause a problem. You will eventually catch up to Evelyn, if you haven't already, and she should still have the star stone on her.


In this case the problem is in the save itself, so you could just zip your latest save to email support.