Yes, I'm aware that there is another major thread on this topic, sorry to clutter up the forums with a duplicate thread. But I haven't seen any developer input there and there is in fact reference in that thread to a bug tracker designation of this bug priority as "Medium". The title of that thread, "Quest - God of Schemes" does not, in my opinion, adequately characterize the severity of this problem for everyone who has it and so, on the off chance that developers have not seen that thread, perhaps they will see this one.
Summary. The many affected by this bug (including both my wife and I) cannot complete the Main storyline quest regarding Molag Bal. We are 100% at a full stop here and cannot advance or exit our characters from this situation. We can't play. That seems like a very "High" priority to me.
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That is all.