N'Zoth fight

Anyone else having trouble getting back into their corpse on the N’zoth fight? I run back to my corpse. The cog appears but its black not gold. I have tried standing still. Changing back into Moonkin form. I have moved about clicking madly. Everyone else has gone through mine is the only corpse and its just not working. I have left 3 groups now as I just am failing on something so simple. In the videos they run back. Cog goes gold. Any suggestions please?
I can also see in videos their corpses have an orange halo and mine just looks black.