Ah, I think I figured it out (Destiny)

by marmot 1333 , Saturday, December 29, 2018, 08:05 (2232 days ago) @ ZackDark

"Weapon Frame Bounties: We are investigating an issue where players are able to purchase weapon frame bounties when a player's inventory is full, and they don't go to the postmaster. Additionally, players who carry over weapon frames from prior weeks will lose access to one of the new week’s weapon frames after completion of the old frame in that week."

I was grinding out pulse frames last week and carried one over into this week. That frame dropped as a 650 weapon this week, despite it being the non-gold frame (blue? black? I don't have the game open right now.)

That's a bummer it cost me the chance at the new frame this week, though.