Lighting help

I must be missing something. Not sure what I checked or unchecked, but everything in the scene except for the grass is lit correctly. The grass looks ‘unlit’ and I can’t find the option to edit the blend mode to correct the lighting. I tried deleting the plane and putting another one in its place but it’s still ‘unlit’ looking.

Everything was fine until whatever happened happened. Now everything I add isn’t affected by the lighting and I have no idea why.

I feel like this should be way easier than I think. Please assist.

This is what I want

This is the issue with the grass being unlit

Everything I add now is ‘unlit’ like the white plane

The attached images aren’t showing in Firefox 78.0.2, not sure of other browsers.