Our application is logged into APPLAB.
For new users, after the first download, after entering the game, call up the Android save menu and select Confirm, the game save function is still unavailable.
But if the user,After launching the game for the first time, when you see the start menu, keep going back until you quit the game and launch it again. You can use the save function of the game.
We tested, if you use ODH to install the APK locally, this problem will not occur, I don't know if there is a problem with the settings.
Have other developers encountered similar problems?