Ian,
It looks like some incompatibility with Android 12 (maybe only on some brands of device). We'll update all software libraries in the next version to see if that helps.
If you are looking for all results in the event you have just run in, you should be able to just tap the drop-down selector "Select event" to find your event. Events in this list have those with the latest results at the top... so you should see your event in the top few. That is, no need to enter any values in those input fields.
If you are looking for an older event, I suggest you open this "All Events" page in a browser on your phone (or PC). "All Events" in MapRun6 is simply a link to the "Leaderboard" page on our website. ie
www.maprunners.com.au and tap "Results Leader Board"
or save the following URL as a favourite:
https://www.p.fne.com.au/rg/cgi-bin/SelectResultFileForSplitsBrowserFiltered.cgi?HideCombinedResults=yes(At least until we release a new version of MapRun6).
Peter