Chests in dragon board after getting a dragon dont give extra materials

[slim parrot]

Better make screenshots. You have completed the dragon (you got a 500x). From now on you should always get two cards in each Ancient chest containing enchantment materials. I assume the left one should be of a Supreme element (Ancient, but it could also be Divine or Tyrant), the other can contain any element.
It’s not said that the Supreme one should be good or excellent or extraordinary.
Do you still think you met a bug? A screenshot would help

[round osprey]

Yup, i still get bug every time and i got some screenshots

Its always or 1 excellent or 4 great, which is chances without getting the dragon

Ill post more if needed

[round osprey]

There's the problem, its only giving the minimum

[novel bone]

That’s not a bug the chances to get more than 1 are very low

[round osprey]

Okay i opened first chest and got everything right, but literally no way before i couldn't get more than minimum 20 times