Bug in the new event??

So every time i play it costs 2 tickets and in the description it doesn’t say anything, is it just me or is it a bug?

Happened to me too. Played once, used two tickets

I’ve had the same experience, but I just went with it.

It does say it costs 2 tickets for fight
Right above the start battle button

Okay, didn’t see it

It consume ticket evrn just for lag when initiate battle and got message failed to connect