Multiple errors and warnings are thrown after some Shader Graph Samples are installed via “All Samples” tab

Reproduction steps:
1. Create a new project
2. Window > Package Management > Package Manager > All Samples > Feature Examples
3. Press “Import” button
4. Observe the Console

Actual result: Errors and warnings are thrown after importing the Sample
Expected result: No errors and warnings are thrown

Reproducible with: 17.5.0 (6000.5.0b1), 17.6.0 (6000.6.0a1)
Couldn’t reproduce with: 17.0.4 (6000.0.71f1), 17.3.0 (6000.3.12f1), 17.4.0 (6000.4.1f1) (No “All Samples” tab)

Reproduced on: Windows 11, macOS Tahoe 26.3 (M4)

Note: Issue is also reproducible with Production Ready Shaders and Terrain Shaders Samples