Do the Quest.

[Shaocalur]

I think it counts off of the first mission that gives you access to the infested deck, as long as that stays open it's counting eggs. I never click the in map mission, I did it once and that was enough for me.

Why would that mission stay unclaimable if the one inside the map is the counter?

You make a good point. In the counter that Sam has if we really did need the quest the last number would always be 0. I was thinking about that for awhile now.