Tourney quest failed

I had to talk to the blacksmith because Im in the epilogue but after talking I got the quest to enroll in the tourney but as soon as I arrived in rattay I automatically fail the quest and the guy just keeps telling me to wait for the next one but nothing happens.

As of my experience, this usually happens when another NPC interacts with Henry while he is in arena.
E.g. Guard wants to search him or an enemy approaches.

In my case, I’ve made Pruda an enemy during quest " Rob the Rich, Give to the Poor" and any time he comes by arena during tournament, quest is cancelled and fails.

But no one comes up to me when I’m at the arena am I doing something wrong?

No, I think it is a bug, I’ve already reported that to support.