Didn’t receive rewards for finishing champs

the new objective Team of the Season: Champions Legacy is supposed to give you a 1 of 5 93+ red picks but I got stuck on 14/15 games even though my champs playoff ended. i got 8 wins so i received the other rewards but i did not complete the objective for some reason. Can anyone help me with this? It put me into playoffs so i know that it glitched out. (check attachments)