Hello Anna, thanks for the quick response.
My workflow is that I create a mapboard within the Mapboard window just by drawing a boundary, entering dimensions, etc. and in Compilation, I add the feature layer as a layer on top. I do not replace the mapboard with a hosted Web Map. In my tests, I have replaced the Topographic basemap with the basemap developed for our organization, as well as authoritative layers such as USA States and Counties, just to test functionality. I do not receive any error messages. The tool will just remain "stuck" on Syncing at 10%, and even after leaving it on for over an hour, it will remain that way without generating any map data within Illustrator as a usable file.
The hosted feature layer is:
Dewberry Office Map - Overview
It's built from a simple CSV file. To clarify, the office locations are just X, Y coordinate points with fill and stroke HEX color values assigned. When I tried to display our headquarters office, delineated as such in the CSV as a separate "class," and I specified the Star 3 from Vector Symbol, Shapes, that is when this issue of not syncing appeared. Only when I replaced that specific Vector Symbol back to a basic point with color values assigned is when the extension resumed working as expected. This was discovered after a lot of different trial and error, for instance, using a public, Esri-provided basemap, not using any other feature layers (states, counties, etc.), parsing each data layer in separately, using a smaller dimension for the mapboard, logging in to AGOL via Edge while the extension is in use, refreshing the ArcGIS Online home screen on Edge just before syncing, and other methods.
