tower of kings bug?

[Faklya]

Greetings everyone, I'm curious if anyone else has experienced it already, or only us. Me and my team are doing tower on hard difficulty, and we noticed recently, that some of us get 5 box for the 5 groups and others get 4 boxes only (Today I got 5, the others got 4; and no we don't open boxes until we finished)
Another day we noticed it already, today we checked it.
Anyone else noticed this? Is it a bug or we are missing some informations?
Best regards.

[SinnedWill]

room-creator/party leader can get the 5th chest (and the exp for completing 5th round) - devs are aware of it, but as to whether or not it's intended, that's being looked into.