Maybe the foam detached from…
Maybe the foam detached from the tire and caused vibrations which caused the wheel to crack? Tesla knows the tire foam problem is an issue but does nothing about it. My car had 5k miles on it when it started to shake violently at highway speeds. Took it in the did a tire balance and wheel alignment. Went away for about a month and the violent shaking came back. After quick search online I found out about tire foam issue. I then took the car in mentioned it to them and sure enough that was what was happening. They know it's an issue and charge you a balancing fee to diagnose it but if they balance the tire and test drive it and don't feel the shake they consider it fixed. However it just takes that foam inside the tire to shift slightly to have the car out of balance again. It's BS and they know about it but continue using the foam or crappy adhesive that keeps the foam glued to the tire.