The hosted vector tile service, when added or saved as a basemap, does not appear as intended in the ArcGIS Web AppBuilder Basemap Gallery widget.

Solução Provisória

Use the Add Data widget on ArcGIS Web AppBuilder to add the affected layers temporarily for viewing (making sure to move any needed layers above). This workaround only applies until the web application is reloaded (browser refresh).

Etapas para Reproduzir