ArcGIS Pro ver 3.3, Beginner - I have a layer called PipeMaintSched which I inherited. It has 4 colors associated with how often the sewer pipes should be cleaned. The layer is set up with unique values and the data for the symbology is from the field MaintCode. There is no problem drawing symbology in my map for these 4 colors. But, I wanted to add a 5th symbol representing pipes cleaned by someone else. I went into the MaintCode attribute table and entered an E in MaintCode and Private in MainFreq2.
When I try to change the value in the Symbology table, it will not let me change it. So when I try to draw a symbology line, it comes out as the yellow line associated with C MaintCode which is the default.
I don't understand what I'm missing. I checked the Layer attribute table and the Fields view but don't know how to make E override the C default. A B C and D override it no problem. I've looked at a lot of different possibilities but just can't figure it out.
I know I'm obviously missing something. Please help.
Thanks, Barbara