Reproduction steps:
1. Open the user's attached project
2. In Project Window find and open Universal Renderer
3. Inspect Game and Scene view
4. Turn off Clustered(Experimental) Rendering in Universal Renderer
5. Inspect Game and Scene view again

Expected result: Lights are visible with Clustered(Experimental) Rendering turned on and off
Actual result: Lights aren't visible with Clustered(Experimental) Rendering off. Weird squares appear in Scene and Game view

Reproducible with: 12.1.1 (2021.2.3f1), 12.1.2 (2021.2.5f1), 13.1.5 (2022.1.0b9), 14.0.0 (2022.2.0a5)

Could not test: 7.7.1(2019.4.36f1), 10.8.1(2020.3.30f1) (no Clustered(Experimental) feature in Universal Renderer)

Notes: It might be needed to toggle Clustered(Experimental) Rendering on and off to see the issue, because sometimes after turning it off it didn't load the textures in the scene.
Did not reproduce with DX12.