I added a WMTS service to a map viewed with the Classic Viewer, no problem. I did this two ways - Adding the WMTS as an item, then adding the WMTS item to my map. Also, by adding the WMTS URL directly to the map. Both maps saved and are viewable, no problem. So there seems to be nothing inherently wrong with the WMTS. The WMTS a layer of the David Rumsey Collection via Georeferencer, there:
https://maps.georeferencer.com/georeferences/b477b45d-fc72-515c-8942-8f1993b59c36/2017-09-15T11:18:49.969698Z/wmts?key=yuWOzYVompiAluUqfQsJ
The successful Classic Map is here:
https://choptank.maps.arcgis.com/home/webmap/viewer.html?webmap=01047a27cc24414d9d1fe60aa15a4185
But when I add this WMTS to the New Map Viewer, or view the saved map in the New Viewer (saved using the Classic Viewer), I get an error. The problem is the New Map Viewer, not the WMTS, far as I can tell.
Esri, could you please comment on this?
Thanks.
