https://wccftech.com/how-to/how-to-fix-windows-10-orange-tint-issue/

Microsoft is on a patching-acknowledging spree. The company is addressing some bugs and then acknowledging some more. In between, the users continue to report even more Windows 10 1903 issues. Admittedly, some problems have more to do with the device manufacturers than Microsoft, but the onslaught of Cortana-specific issues aren’t helping the Windows maker right now.

The latest issue being reported by users is an audio quality problem, the issue being acknowledged by Microsoft is a Search and Start menu bug, and the problem that is actually being addressed is the orange/red tint that some users have been experiencing while using Windows 10 1903.