When hunting pota on hamrs I would populate the log from the spots page in the app. Then once confirmed in my logbook the station on the app spots page would turn green giving a form of confirmation I have already worked this station.
I just tried WRL for the first time today but it seems this functionality is not present here. Once I populate and log a pota contact from the spot page in WRL app, when I go back to spot page it looks the same making it very easy to work the same station twice.
I believe there should be a confirmation of some kind ie color or check mark or something once you log a pota contact from the app spots page.