Add layer to cloned Web Map api for python in Jupyter notebook

GIS_utahDEM

Hello. I am attempting to clone a Web Map in AGOL for each jurisdiction in the state, and then add a layer to that map based on the jurisdiction. I am successful in the first portion of this, but despite not having any error codes, the web maps produced do not contain the layer I am trying to add. I am guessing that there is something funky with the format of my Web Map, but since I'm not getting an error to go off of, I'm not sure where I'm going wrong. 

webmapJSON = map_item.get_data()
for layer in webmapJSON['operationalLayers']:
    display(layer)

web_map_dict = map_item.get_data(try_json=True)

for index, county in enumerate(counties):
    county_name = counties.features[index].attributes['NAME']
    print(county_name) 
    title = "UCIP_Test_" + county_name + "_AddLayers4"

    web_map_properties = {'title': title,
                         'type':'Web Map',
                         'snippet':'This web map copied from template',
                         'tags':'ArcGIS Python API PC Test',
                         'text':json.dumps(web_map_dict)}

    web_map_item = gis.content.add(web_map_properties)
    
    ucipMap = WebMap(web_map_item)
    
    layer_search = gis.content.search(query = "UCIP_" + county_name + "_County_View")
    
    layer = layer_search[0]
    
    print(layer)
    
    ucipMap = ucipMap.add_layer(layer, options={'title': county_name + "View"})

The print functions return the correct county/layer pairs, so the problem is not in finding the layer, and the WebMaps show up in AGOL with appropriate names, but they don't have the "layer" that I'm trying to add. 

DavidPike

I think the issue is that you used the .addLayer() method on the ucipMap WebMap but then recast ucipMap as the boolean return from the method. i.e. the ucipMap no longer refers to the WebMap.

perhaps:

ucipMap.add_layer(layer, options={'title': county_name + "View"})
ucipMap.update()