The players of my Unity Android game can sign up and login using email address.
Some players are facing error with logging in. Sometimes login just fails without any apparent reason. Most of the time, it works fine but sometimes players can't login to their already existing accounts.
I'm using LoginWithEmailAddressRequest for login request. I'm unable to figure out the error's reason, but I think it's not an issue with the code because most of the time players can login just fine, but sometime they are unable to login with the same credentials they use when no login error occurs.
Please give me any hint or general idea what could be the possible problem. Free version of PlayFab? Too many players at the same time?