Bug Unity VideoPlayer Near/Far Clip Plane mode mysteriously not working

I'm trying to play a video in my Unity project using VideoPlayer, and no matter how I set it up, only RenderTexture mode works. If I set the component up to play on the target camera's near or far plane, nothing happens upon pressing play. I have thoroughly troubleshot my setup. I am using Unity 2020.3.36f1. We are using the built-in render pipeline.

Things I've tried:

New scene with nothing but the videoplayer component and camera
- Nothing happens except when using RenderTexture mode
New Project with same Unity version and same video clip
- Works Perfectly
Re-enabling Unity Audio since my project uses FMOD
- No effect, audio only plays back when using RenderTexture mode
Workaround attempt: Using RenderTexture mode, and displaying the video via a RawImage on a UI Canvas
- The video appears to work in-editor, but shows up black in the game view:



The project is quite big, is it possible for an external package to mess with the built in Unity video player?
Also is the Unity VideoPlayer a package that can be updated by itself? It doesn't appear to be.
I would file a bug report but I don't know how to even begin reproducing this issue.

Sidenote: I have not tested Material Override or API Only modes.

 

Took a look at the frame debugger:


It should appear at Render.TransparentGeometry, and you can even see the correct texture appear under the Textures_MainTex Line.
Huh.

 

Aw jeez. For some reason, I had a folder full of the built-in shaders from Unity 2018 in my project folder from forever ago. That's why Standard shader was appearing twice in the shader list. That folder's shaders were overriding the built-in shaders it seems. I deleted the folder, the entire editor turned pink. I restarted, and now everything works fine. As much as an L this is, I'm gonna keep it up in case someone else has this insanely specific problem lmfao