When a feature class has subtypes, but is symbolized using a non-subtype field, Error 00334 is returned when publishing a web layer to ArcGIS Enterprise.

Workaround

1. Convert the feature class to a shapefile.
2. Add the shapefile to the map.
3. Right-click the layer in the Contents pane, and export features.
4. Export features to a geodatabase.
5. Add the exported feature class to the map.
6. Symbolize by unique values, and choose any field that is not a subtype field.
7. Publish the web layer to ArcGIS Enterprise successfully.

Steps to Reproduce