I have a map on Google My Maps that I want to display using the Google Maps JavaScript API; this is so that I can easily combine multiple maps into one and create paths/mark
There seems to be a bug.
When I remove the <color/> from
Style#icon-503-DB4436-nodesc-normal>IconStyle I see the marker.
According to the documentation <color/> isn't supported at all for <IconStyle/> and will be ignored, so it shouldn't affect the rendering.
Related: Issue 8551 in the issue tracker