ArcGIS Pro 2.4.1. I am using the append tool in model builder to append a file geodatabase feature class to an sde feature class. The schemas do not match so I am using the field map to reconcile the differences. I will set the fields in my file GDB feature class to match fields in my sde feature class, all of which have the same data type. However when I close the model and reopen it, the field mapping resets. Has anyone else had this issue?