Can confirm it's working properly now after the new patch today.

Exactly. The whole reason I went to complete this quest was so I could play the new content on my mando and now gotta wait for a patch to continue playing that character.

Cannot complete Ruins of Nul flashpoint story mode. After defeating Malgus attempting to enter dialogue to apprehend him plays the cutscene but afterwards doesn't advance the quest and tells me, "You must have two available slots in your mission log! Please abandon sufficient missions and talk to Malgus again to proceed." I only have 6/25 missions in my log and abandoned one just to see if it would help and it didn't. This was right after the release of 7.2.