I'm not sure what the problem is that you're seeing on your end - the maps with the MapBox tiles show up in the tooltips for me when I open your TWBX. It looks to me like all of the maps use MapBox tiles; I didn't see any using the Tableau map background to use as a comparison point. AFAIK there shouldn't be any difference in how the worksheet appears as a a viz in tooltip based on the map tiles.
I also noticed in your workbook that I couldn't open many of the vizes because of this error - I don't know what in the data or worksheet is triggering it so didn't try to debug it.
I can see them. Maybe a slow connection? Viz in tooltip takes quite a bit.
Thanks Sarah. I think the issue is with the firewall on our Tableau Server. I discovered that it worked correctly on Tableau Public so I have it there for now.
Sent from the iPhone of Timothy Dines.