The map pins were working perfectly until the pin image was changed. It appears that all Map Locations are in a specific country when zoomed out and will only line up better when zoomed in.
When several Map Locations are close together due to their saved addresses on the Map, the map pins may appear close to one another. This may confuse a site visitor viewing the Map.
We recommend enabling the Map Clustering feature for your map to look better and more organized. With clusters, multiple nearby locations will be grouped into single icons that, when clicked, will zoom in and expand to show the locations. This is very useful when many locations are close together. Please click this guide which details how this feature can be enabled.
Checking the dimension of your Map pin image may also help. Pins that are too large can confuse your site visitors when viewing your Map page, especially when there are nearby locations on the Map. There's no standard dimension for a map pin and therefore you will have to choose the pin size that best suits your map.