The workaround from the OP does not work for me.
Not being able to complete either The Esseles or The Black Talon is excruciatingly frustrating.
Get your DEV team to do something useful and fix these bugs! Instead of bringing out more new stuff, fix the old stuff first.
It works for me for The Black Talon but not the The Esseles.
(Edit: The workaround does not work anymore for the Black Talon since 1.6 for me)
And yes it's very frustrating and still not fixed, and I'm starting to think it will never be fixed