I have several times used the feature to add a link to a KML file as part of the URL. This has previously worked fine.
I am preparing a KML file for a new event, possibly more complex than the previous ones. It contains a route and several sets of marker icons.
Everything renders OK until I add more than 30 marker icons. At that point some of the marker icons are not rendered (being replaced with a 'default' icon i.e. it doesn't think the icon is valid).
All of the icons are valid and render OK if I comment out other icons.
I can see from earlier posts that this was already a well known problem in 2012, believed to be on the Google side. Has there been any progress? Are there any solutions or work arounds?