I contacted King, and they are aware of the problem, but offered no solution. They did give me 20 gold bars, though. Maybe it will get fixed with next game update?
Got a new phone, Galaxy s9. Booster wheel will not load. It was working fine on old phone, Galaxy s7. I have uninstalled, reinstalled, updated phone, updated app, nothing. Whatever this glitch is with android, please fix ASAP. Ruining my game experience.