I'm running a beta build through Viveport. My own account (admin) can view and submit scores successfully with no error, but when my testers run it, the scores don't get submitted and they get ID errors:
DownloadLeaderboardHandler error: 50001
UploadLeaderboardScoreHandler error : 50001
Looking at my testers log files, I can see that everything other than the leaderboard connection is working as it should. It retrieves the licence succesfully and gets their usernames from Viveport with no problems. It's only the leaderboards that are giving me this error. And only on testers systems not mine.
As I don't actually use any ID details to talk to the leaderboard, I don't see why it would give me authentication errors. What might be causing this?