RE: https://wordpress.org/support/topic/prevent-default-map-tiles/#post-17065108
if a map is set via [leaflet-map] it defaults to whatever the default lat/lng is. That same map may be instantiated with [leaflet-map fitbounds], and it doesn't need to start at the default lat/lng.
Investigate whether we can wait to create the map, after the shapes have been created.