Didn't finish an evo, got rid of the card. Can't evo the new gold

@MrC_0You are mixing multiple things here.

This thread is related to discard evo card.

Your issue about Anotonio Silva must be having additional position (i think CDM) which is not their on base card (dont remember exact evo name).
This issue exist in game since first evolution. On this case, you are correct.
Reference - https://trello.com/c/CIWDOzRV/420-ut-a-stability-issue-could-occur-when-placing-a-previously-evolved-player-item-in-an-evolution-slot