Hi, in SP Pagebuilder opensstreetmap addon works fine. Zooming in and out the default marker stays exactly on the selected Latitude,Longitude - point.
Selecting a custom marker (icon 40x40px for exemple - i tested different sizes) will change this behaviour. Zoomin in (near to detail) the point get exactly. Zooming out; as farer away the zoom goes, as farer away the custom marker goes from the effective Latitude,Longitude - point.
It seems as the zoom-center is not exactly the Latitude,Longitude - point.
In my opinion this is a bug. Can you please check that?
Regards Heinz