Fix is only speak once with the Npc and dont ask him for more. Is ther a cirlce on your map with find X(NPC) it works. Dont speak with him again bevor you be on the endboss of the instance!
Okay did this, looked like it was going to work, First Keeper discovery went "Completed" on the mini-boss pull, then after the boss died she is still stuck in the bubble and it says to find her.