Opening the Project Settings and then choose “Save Project” causes Unity to output various errors:
Multiple managers are loaded of type: InputManager
Multiple managers are loaded of type: GraphicsSettings
Multiple managers are loaded of type: PhysicsManager
Multiple managers are loaded of type: QualitySettings
Multiple managers are loaded of type: Physics2DSettings
Multiple managers are loaded of type: VFXManager
Also enjoying this error. Interestingly enough, If I play my game thru editor first, then use Build and Run then I do not get the multiple managers warning.
This issue was introduced in 2019.3 and has been fixed since a6. There was not need to backport anything since 2019.3 was the main development branch at the time when the fix landed. If you’re still experiencing this issue or if you’re experiencing a similar issue with a previous version of Unity, please submit a bug report.