When trying to load a map with dynamic lighting on it, it will stay on the black screen and display loading messages forever. Viewing with Web Inspector shows errors which just say “null”. This occurs on all browsers (safari, chrome, firefox), presumably because they all use the same WebKit API. I’ve discovered that for now, going into Safari experimental settings and disabling “WebGL via Metal” gets the map to successfully load, but it would be much better if it would work by default.