I have a few basemaps that are having issues. They are tiled map services that are cached up to a certain scale level (1:875), then the data should be drawn dynamically. However, at two scale levels (1:400, 1:200), the service disappears completely, then reappears. Has anyone had a similar issue, or know what is the cause of this? You can see the issue we're having here.
Any help would be greatly appreciated.