Cannot see how many Portal Scans there are available if no Portal nearby
A: No nearby portals, select nearest one:
If you try to go to Portal Scan view and check how many Scans there might be available, you just got a message "You are too far away from this Portal to contribute."
B: Only if there is nearby portal you can see Scan count ok:
If no available Scans you got a message "You have no contributions available for submitting portals scans at this time."
or Scan view opens with available count in bottom right corner.
Maybe available Portal Scan and Nominations counts could be shown in Settings view.