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The solution to this issue is that my labels we coming from a different database. Tiled Labels To Annotation (Cartography)—ArcGIS Pro | Documentation
"Annotation that is feature linked is associated with a specific feature in another feature class in the geodatabase. If checked, when you create the output annotation feature class, a relationship class will be automatically generated as well."
SMH
The solution to this issue is that my labels we coming from a different database. Tiled Labels To Annotation (Cartography)—ArcGIS Pro | Documentation
"Annotation that is feature linked is associated with a specific feature in another feature class in the geodatabase. If checked, when you create the output annotation feature class, a relationship class will be automatically generated as well."
SMH