Maybe because google play store doesn't let user download resource file which it thinks user will not need.
Can anyone help me? Thanks.
The problem is that you're using .aab file to publish app on play store . Which removes localization files based on the user's phone settings when it's been installing .
To solve that you need to put this lines in your build.gradle file and try uploading again
android {
//... removed for brevity
bundle {
language {
enableSplit = false
}
}
}