Sounds like you were a bit below from the maximum (10) at that point and the required value to reach rank 3 (8). Did you become a noble? If you did, you saved the noble for sure.I did complete a lidless eye, can't remember if I saved the young noble.
I edited my save to raise my rank, and after the new quest I now have 10 adventurer guild reputation, so I think I had 7 reputation before then, idk if that helps.
Anyway, it's not really important. I don't think it's a bug or anything, just some issue with the old save or maybe I updated some quest after you completed it.