What could be potential reasons for Android to not copy .obb to Android/obb during deployment through USB?

I'm deploying a mobile game through the Unreal Engine platform (Quick Launch) to my Xiaomi through a USB cable. When it's installed, the game runs automatically but it's immediately closed. After a bit of research, I found out that there are no .obb files inside the Android/obb folder for this game. If I place the .obb manually into this folder, the game begins to work as expected. What could be the reason that the .obb is not copied during deployment? Actually, it was working well until recently. I cannot imagine what happened...