Views map formatter doesn't display. Field formatter does display.

I want to test this module out so I've created:

• a content type with a Geofield location field
• two pieces of test content with lat/lng values for their locations
• a View

The aim is to create a View which displays these nodes on a map, with an info box showing their teasers.

There appear to be two ways to make a Leaflet view:

• Method 1:
• Method 2:

The first way doesn't show any map at all. The second brings up a map, but a new map is shown for every entity.

So: how do I get the first method to work at all, and which of the methods should I be using?

Other than this confusion, great module!