Reply to Does Xcode 12 (12A7209) crash Spotlight? Also Core Data template does not run in Simulator. Also makes Mac super hot and fans whirl?! I believe I'm experiencing the same behavior as of about 2 days ago. Doing an xcode build crashes spotlight and mac (air for me) runs hot. Unfortunately I can't compile/run a project I've been working on now due to this. Developer Tools & Services Xcode Sep ’20