It ain't a new release without the corresponding bug topic!
Here's the first bug I run into (although to be fair, it probably was in previous versions too, I haven't visited that screen in a while). Turned out to be quite harmless although it gave me a bit of a scare when I first saw it:
Whoa. But turns out my progress wasn't lost when I go into the individual maps to check. In fact if I exit back to the main menu and then re-enter pilgrimage, the stat screen will be back to normal. Phew!
Turns out this happens if I click "user-generated mode" and go to a custom level, and while playing it I use the menu to exit back to the world. If I go visit the Stats screen then, I will see this broken stats display. But to my relief, my progress weren't actually lost.