Hello! I am working in ArcGIS Online's MapViewer where I created a new sketch layer to later use in a StoryMap that I am working on. This sketch layer includes polygons, points, lines, and pop-ups. However, when I go to hit "save" or "save as" to save the map, I receive an error message simply stating: "Unable to add layer to x map; the layer y cannot be added to the map." I am able to save the layers individually as layers, but I am not able to save the map when they are added. In addition, I am unable to open the web mapviewer where I've made these changes in MapViewer Classic.
I am relatively new to ArcGIS online and have no formal training, so there may be something really simple that I am missing, but I haven't found any troubleshooting help online (clearing cache didn't work, there are no permission issues as this would be a private map and I am creating the sketch layer from scratch).
Thanks in advance for the help y'all!