Is it just me or are the event chests not clickable?

I've felt this way for a while, thinking it was just a simple touch issue. The final reward chest/box shows what you get when you click it, but I don't know why the chests in between aren't clickable. I'm curious what the blue chests give, but I can't see ㅠㅠㅠㅠ Is it just me? 😮💨😮💨😮💨