Changing the height setting of a Map widget has no effect

Changing the height of a map widget using the Height box or the Use Customizer check box in the widget preferences has no effect. The map always renders to the same size.

The Height and Use Customizer do not override the height of the Map widget. That is controlled by the height settings available in the Map Editor. To set the height of a map, set the Use Customizer widget preference, and configure the height of the map in the Map Editor.