The House Hlaalu quest "Telvanni at Ordirniran" is giving the player who accepts it the similarly named quest "Telvanni: Ordirniran" which is a house Telvanni quest.
The fix will be to change the quest code fbmwHTOrdirniran to fbmwHHOrdirniran
Able to patch it for my own save with the console command, but wanted to flag for the project as a whole. :)

Also, the quest Ashlander
Also, the quest Ashlander Ebony does not trigger following Exterminator. Looks like a broken script after asking for "Business" - the first part triggers, the second doesn't, thus making no option available to follow up with the guildmaster on to receive the quest.