Tower Second Time no Rewards

I did Tower to 15 with my main and didnt get the rewads. I would have needed the 30 harmony leap stones -.-

Server: Thirain
Char: Zormara

You can do the tower only once per character. If you did it on your main, then you “wasted” the upgrade materials

It does not work once per character rn. I believe it’s bugged. I’m only getting rewards for my main and my first alt. The rest are getting nothing. It matters not which char goes first the main always gets the cards etc.