Hello,
I built a Guided Tour using StoryMaps. The basemap was sourced from the David Rumsey collection using WMTS.
For the past three months everything was working fine. I'm 3 days from launch and suddenly, the basemap has disappeared. The Guided Tour points are showing on a blank gray background.
I neither edited the basemap nor changed any settings such as permissions. All I have done in recent weeks is add points along the tour.
It was literally working in the morning and then not working in the evening. What on earth could have happened?