2D Universal Render Pipeline -> Black Screen?

The Issue
I'm trying to implement the 2D variant of Unity's Universal Render Pipeline.
The Scene view is just fine; no purple shaders, etc.
The Game window, however, is entirely black (during playing, as well).

What I've Tried
-Created the 2DRenderer and UniversalRenderPipeline assets.
-Set the 2DRenderer as the default (only) renderer in the Pipeline asset's Renderer List.
-Set the Pipeline asset in Project Settings > Graphics > Scriptable Render Pipeline Settings.

That's just about all the info I could find on this.
Any suggestions would be welcome!

 

I think I figured it out, so here's what I did; hopefully it'll help out someone!

Use Unlit Material Type
-If you're not using any lights, be sure to use the Sprite-Unlit-Default material, not the Lit one.
*You can set the 2D Renderer's Default Material Type to Unlit, as well.

Camera Render Types & Stack List
-My main issue was that all my Cameras were set up with their RenderType set to Base.
-I had to first set the Cameras rendering on top of the base game to Overlay - like the UI Camera, for instance.
-Then, I had to add these Overlay Cameras to the Base Camera's Stack list and order it appropriately.
*If your rendering order is messed up, check your Canvas Render Mode and your Base Camera Stick List order.