Board Game Arena

When you start an arena game, it doesn't let you customize the options, and I've always played arena without the swift start birds. When starting an arena game, it won't let me change the drop down to include them.

But I recently played a non-arena game and included them. Then, the next time I went to start an arena game, the option to include them was turned on, rather than off. And one of them showed up during the arena game. So apparently, you can change that setting by changing it in your non-arena game challenge, and then switching to arena mode.

So I found the answer to my own question. Swift start birds are NOT supposed to be in arena games. Apparently, it's a bug. I'll report it in the proper bugs subforum.

Edit: Here's the bug report if people want to upvote it: https://boardgamearena.com/bug?id=112847

I found quick start birds tons of times in arena, this is getting annoying, when will the bug be fixed?

Is it a bug that only happens in Wingspan, or can similar things happen in other games?