"Only the Catholic Church has the Sacrament of the Holy Eucharist."
!!!!!!!!!
"Once an Episcopal priest celebrated a "Mass" for us, a group of Catholics performing a grief ministry weekend, I would not go forward to receive the Communion because I knew it was invalid."
I agree that it was invalid, though for some very specific reasons. What difference, therefore, did it make if you partook or not? Suppose it had been an Orthodox priest. What would you have done then?
My guess would be that we're not allowed, but I don't know. Have the excommunications been lifted on every hand or what is the current situation? I mean other than a crying shame, that is.
If I'm not mistaken a Roman Catholic can receive Communion at an Orthodox Church. But as far as I know the Orthodox members do not receive Communion and a Roman Rite Church.