While I was doing one of the Dark Brotherhood contracts (specifically "Contract: Kill Maluril"), I fed on the corpse of Maluril through Namira's ring since I didn't realize that supposedly disrespects the DB.
After a day or two of playing Skyrim, I went over to Nazir to turn over the contract. It was only then was I notified of the "Honor Thy Family" quest.
The problem is that nothing changes when I talk to Nazir and "pay" the fine (no gold is taken from me), and his dialogue is just stuck there.
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TL,DR:
Honor Thy Family
When Nazir asks me to pay the fine and I agree to pay, the conversation ends with nothing changing. Speaking with Nazir afterwards, he is still asking me to pay the fine. (no gold is taken)