Save game to the slot is not creating any save file for Android

Hi!! So now I published one of my FPS game in Play Store. But I noticed one problem that the data of my game is not saving inside mobile storage. As well as there is not creating any folder like “UE4Game”, where I can see this file inside my test mobile. I deleted that folder many times and when I am going to play, it is automatically creating inside my mobile. So why It would not be for others? By the way, I have separated my final apk with APK and OBB.
Please help somebody. My game has already published.

i too getting the same problem, please someone help. my project is ready to release but at this final stage i’m facing this same issue. please please please help me.