I’d still get renown from it, it shows as complete, but like many others, it doesn’t show as completed on my map.
Previous to 9.1.5, I’d get 25% towards Shaping Fate, but it seems like it doesn’t work anymore. I got renown on two toons and 0% progress towards Shaping Fate last week and this week.
I got Shaping Fate credit OK just now. Looks like the reward/credit process is bugged again for some players.
Just did it on another character and I got credit for it… I don’t understand why this is so inconsistent? It used to be guaranteed that killing Mor’geth granted 25% towards Shaping Fate.
Shaping Fate not working right for me either I finished off a rare and Mor’geth slain says complete but wont first time ever for me and jailer efforts remain 94%.
Just did this today on my shaman and got 0% credit for it 
You have to wait for Mor’geth to respawn and then the ingot drops and the quest credit appears.