I have come across a couple of major issues while in the Maw.
1: Can’t heal friendly players. (can’t heal players unless they have PVP disabled message.)
2: You can queue for a premade group in the Maw but be permanently out of fazing from the group regardless of war mode. (exiting the Maw while in a group and reentering doesn’t work.)
3: Everything will randomly come at you at once. There is no warning when this happens. (eye of the jailer hasn’t reached the first stage)
4: Every time I enter the Maw, I disconnect.