What the hell is going on

What the hell is going on with the missing pre season cards.. I already had 2 95-96 overall players looking to get Tomas Hertl and now when I can almost get my third I go to put them into the set and they are nowhere to be seen!!! I need explanations to why you are bad at making games? The cards are untradeable as well.. so there is no reason to why my 2cards have been removed.