Hello, just got back into the game trying to catch up. I am trying to get all the perks for choir of one and in the exotic mission, for secret chest 2 (the one you get from the portal that takes you back to the beginning) the conflux to get command frame 4 is not there. I’ve done all the research specimens except for 9, which I can’t get because the 3rd portal won’t open. Am I missing some steps?