I've created Coded Values in a Domain, for Parcels, to enumerate 10+ Zoning Categories. The Codes and their Descriptions have been created.

When I right click the Parcel layer in the ToC > Symbology > Primary Symbology: I choose Unique Values. I set Field 1 to Zoning_Category. On the Classes tab, I hit the Add All Values icon. Here's the problem: The Symbol only displays 6 symbols, even though there are 11 coded values available.

I DID click/check More > Include all other values, but the other classes do not get added to the Classes
How do I make both the Symbol column (Classes tab) and the Table of Contents to display all 11 classes?
Dave