I don't know why they ended the maintenance this early if the event's still that broken. Maybe they just gave up on fixing it today.
Looks like Azalea (rainbow) hasn't been added to the gacha.
I can now confirm that the growth stage problem was just fixed. Azalea (5 star) is now available as an event unlockable and hopefully, the event equips. I don't know if they fixed the bonus stages yet since I'm fairly new and don't have a strong enough team.
"Compensation? What's that? Is it tasty?"
That's funny... The Azalea that drops from the event is a special reskin of the one you see in the story. She looks different.
5* Azalea doesn't have her name showing up. Displays as (blank) x1 in gift box.