I'm new to the ArcGIS API. I have experience with Google Earth API so please bare with me on this question as it might be simple. Below is my attached codepen I can't figure out why the KML will not show up when I use the Tiled Map service with adding the KML. I suspect that it is being placed behind the REST map, but I'm not entirely sure.
Could someone point me in the right direction or provide some input.