“NullReferenceException: Object reference not set to an instance of an object” error is thrown after switching to the default Build Profile in High Definition 3D template

Reproduction steps:
1. Create a new High Definition 3D project
2. File > Build Profiles
3. Press “Add Build Profile” button and add any Build Profile except for the default one (e.g. add “iOS” Profile)
4. Press “Add Build Profile” button and add default Build Profile (e.g. “Windows” Profile)
5. Press “Switch Profile” button
6. Observe the Console

Actual result: “NullReferenceException: Object reference not set to an instance of an object” error is thrown
Expected result: No errors or warnings are thrown

Reproducible with: 6000.3.1f1, 6000.3.16f1, 6000.4.9f1, 6000.5.0b10
Not reproducible with: 6000.0.76f1, 6000.3.0f1, 6000.6.0a6

Reproduced on: Windows 11, macOS Tahoe 26.4 (M4)

Note: Not reproducible with Universal 3D template