Hi Jerod,
> web map doesn't have any downloadable area for use in collector.
Perhaps you could provide some more context. Are you saying,
a) You're unable to download an area from your web map?
Have you confirmed that both the web map and its feature layers have offline enabled?
Prepare for offline data collection—Collector for ArcGIS | Documentation
or b) You're expecting to see downloadable areas in the web map (after setting them up) and they are "missing"?
What release of Collector are you using: Collector Classic or Collector for ArcGIS (Aurora)?
FYI, if it's Collector Classic, it does only supports on-demand map areas.
Hope this helps,