Symbology not correct

[ElizabethWheeler]

Hello,

I am using the unique values to represent my data though only one color is apparent. This is also true when I use multi ring buffers. 

I am using ArcGIS Pro 2.5.1

Am I now doing this wrong? 

[DanPatterson]

Your core area is under your study area.

Double click on the study area color and set it to transparent or just an outline rather than filled

[RobertBorchert]

Click on the Symbol Layer Drawing Tab and turn on Enable Symbol Layer Drawing