Cataloguer Emblem is stuck at the postmaster. I picked it up 3 times today on the same character. It won't go away. I've tried via 3rd party apps as well(DIM). Same issue. Also the same across all three characters.
Yeah it’s like the Edge Transit....it won’t go away!
Don’t store it or delete it. Keep it in your inventory and it won’t keep asking you to pick it up.
Known issue. For me, i just keep it in my inventory slots & it doesn’t come back...but does if I delete it.