Bug in FUT birthday crafting SBC took away my Vieira, Gervinho and TOTY Eusebio

So I was grinding the FUT birthday crafting upgrade SBC, which clearly states that the requirement must be 8 players that are exactly gold. So when i was doing the upgrade and using the web app to filter players, I accidentally saw the squad to be submitted contained Thunderstuck Vieira, the non-sbc Gervinho and TOTY eusebio. I didnt think too much about it and just deselect them and start the squad building again. After I am done, I suddenly found out all 3 players were missing from my squad, not in the quick sell tab, and also not in the reserve squad. The only SBC I have been doing were the FUT birthday crafting upgrade, the 81+ player pick and the 82+ combo upgrade, and I just double checked where the requirement must be exactly gold players. The only explaination is somehow there were an error with the SBC and they just accepted my Vieira, Gervinho and Eusebio as Gold players and sucked them in?????? WHAT ON EARTH IS GOING ON?!