This is still an issue in Xcode 12.0 GM Seed. Here are my Simulator version numbers: Version 12.0 (940.16) SimulatorKit 597.13 CoreSimulator 732.17 When signing in on a Simulator, the progress spinner in the password field shows and never stops spinning. I used the Juice app to repro.

I can still repro this in the latest beta (Xcode 12 b5) on the Simulator.

Can repro this 10/10 on Xcode 12b4 when running on a Simulator running iOS 14 (using the Juice sample app). It works fine when running on a physical device (iOS 14 or lower), as well as when running on an iOS 13.4 Simulator. I've filed FB8281892 with details.

Still not working in Xcode 12 beta 4.

Still an issue with Xcode 12 beta 3. Xcode Version 12.0 beta 3 (12A8169g) Simulator Version 12.0 (940.12) SimulatorKit 597.10 CoreSimulator 732.7

Can confirm this happens with the Juice sample app. Environment: Xcode 12.0b1 SimulatorKit 597.8 CoreSimulator 725.10 iOS 14.0