ESRI label working example
must have used maplex label engine in ArcMap and ArcPro.
https://transparentgov.net:3200/googlemaps17/default?layer_id=0&layer=EJArea_boundary_scag¢er_lat=34.16830903991158¢er_long=-119.08431241183577¢er_zoom=13&url=https%3A%2F%2Fmaps.scag.ca.gov%2Fscaggis%2Frest%2Fservices%2FClimate%2FEJArea_boundary_scag%2FMapServer&overlayType=overlayType_image&dynamicLabelField=OBJECTID&panto=0
https://transparentgov.net/json2tree/esri/server2/folder.html?url=https%3A%2F%2Fmaps.scag.ca.gov%2Fscaggis%2Frest%2Fservices&org=Southern+California+Association+of+Governments&_center_lat=33.980602&_center_long=-117.375496&_center_zoom=17&select_folder=123&select_layer=0
ESRI label NOT working example
must have used esri standard label engine in ArcMap and ArcPro. It will work until they switch it to maplex label engine by simple check the 'using maplex label engine' checkbox in ArcPro and ArcMap. see my next screen for where to check maplex checkbox
https://transparentgov.net:3200/googlemaps17/default?layer_id=0&layer=DataWarehouse.SDEADMIN.Zipcode_boundary_scag¢er_lat=34.1371212077878¢er_long=-118.49312102625754¢er_zoom=10&url=https%3A%2F%2Fmaps.scag.ca.gov%2Fscaggis%2Frest%2Fservices%2FOpenData%2FZipcodeboundaryscag%2FMapServer&overlayType=overlayType_image&dynamicLabelField=OBJECTID&panto=0
https://transparentgov.net/json2tree/esri/server2/folder.html?url=https%3A%2F%2Fmaps.scag.ca.gov%2Fscaggis%2Frest%2Fservices&org=Southern+California+Association+of+Governments&_center_lat=33.980602&_center_long=-117.375496&_center_zoom=17&select_folder=58&select_layer=0
How to switch from ESRI standard label engine to maplex label engine
https://transparentgov.net/cleargov1/search?q=maplex
https://transparentgov.net/cleargov1/1017/why-should-maplex-label-engine-instead-standard-label-engine?show=1017#q1017