So I got into a game of Crowns with a couple of people. The first game went fine, but the second spawned a bizarre series of events that are probably clearer in list form. Since I don't know what details might be relevant, I'll just include everything.
1. The timer reads 0 even when everyone has crossed the play line. I've seen this happen plenty of times, and it always turns out to have been working all along, so I didn't think much of it.
2. The new game day starts. I notice my energy and mood refill.
3. I grab the crown from the first person. My timer briefly reads -1 before starting up normally.
4. I bump into the first person again, (ostensibly) losing the crown.
5. This.
6. Teleportation does not work. Jumping back up above the play line and down again is ineffective. After one player leaves, I manage to get the other player and myself out of the game area by initiating a different race ticket.
7. The race does not start, and the other player's dot on the map is still gold. Crossing the finish line does nothing.
8. Leaving and re-entering the world lands us back in the broken Crowns scenario, and doing so a second time frees us entirely.