A Link to the Past
Banned
And Marvel isn't shy about including plenty of black actors and creating more black roles in their movies; Chinese audience sensitivities be damned. Rubbing the Tibet issue in China's face - or tacitly supporting China's stance by making The Ancient One Asian but removing the character's Tibetan heritage - was deemed pushing the envelope too far. Like I said, you pick your battles, and I think Marvel/Disney navigated this issue very smartly.
Black actors being box office poison in China is a myth.