It appears that the gradient groups for Photoshop 2021 are missing. I believe there are supposed to be gradient groups organized by color in PS 2021. Below are the gradients I have in my library and the option to add gradients is grayed out. Help.
Solved. Apparently there is a limit to the number of palettes that can be loaded at one time. I had a number of custom palettes loaded that were carried over from previous versions of PS. Once I removed a number of the older palettes the stock palettes appeared.