This issue is not reproducible in both ArcGIS Pro 3.0 final release and ArcGIS Pro 3.1_40204 which is currently in development.
Consider upgrading to the latest release of ArcGIS Pro if this issue persists in an earlier version.
解决办法
Export the feature class into a file geodatabase and remove the Global ID field.
Open the Enrich tool.
Input the new exported feature class and add the desired variables.