@Ubi-Ginge I tried those steps and still unable to have it pop. I even went back to a save before I the final order member was revealed and redid it. Nothing. I also can't pick up Thor's hammer either after going back to previous saves.
I went to grab the hammer but there is no interact button. I got it one time when I wasn't wearing all the gear, but nothing happened after I used it. Now when I go back to other saves and wear Thor's gear it doesn't prompt at all. Any suggestions?