Ok, this would not be the recommended solution since it's modifying a core SP Page Buider JS file, but it gets the job done if you are looking for an immediate solution.
Need edit this file components/com_sppagebuilder/assets/js/leaflet-provider.js (file is minified, so you'll need to look for this line:
{for(var c=L.Icon.extend({options:{iconSize:[38,95],iconAnchor:[22,94]
And change the 95 to 38 and the 94 to 37.
Hopefully, Joomshaper has a more permenant fix coming. Just thought I'd share what I did to get the page looking nice while we wait.
Kind regards,
John