Steps to reproduce:

1. Create and open a new project
2. Open Player Settings and change the Graphics API to Vulkan, restart the Editor
3. Open Build Profiles and switch to the UWP build profile
4. Observe the active Graphics API at the title bar of the Editor window (should be set to "<Vulkan>")
5. Open Player Settings again
6. Drag Direct3D11 or Direct3D12 on top to switch the Graphics API
7. Observe the Editor

Actual results: Nothing happens

Expected results: The user is asked to restart the Editor to change the Graphics API

Reproducible with versions: 6000.0.0f1, 6000.0.72f1, 6000.3.13f1, 6000.4.3f1, 6000.5.0b4, 6000.6.0a2

Not reproducible with versions: 

Can’t test with versions: 2023.1.0a1 (No UWP build profile until 6000.0 stream)

Tested on (OS): Windows 11 Pro (25H2)

Workaround:
1. Switch back to any other build profile
2. Switch to any Direct3D Graphics API
3. Switch to the UWP build profile again

Notes:

• Reproducible with any other Graphics API except Direct3D11 and Direct3D12