Why doesn't Julia get the honorific plural here? An uncle did in a previous exercise.
The honorific plural was not accepted as a correct answer ... Is it correct to use the honorific for "uncle" but not for "aunt"?
Questions in the first Family skill accepted honorific plural for नानी and दादी. I suspect not accepting it for बुआ (मौसी, चाची, ...) here is just an omission.
Report it. If a lot of people report it, they'll fix it.