Sorry, cannot understand clearly what you mean here.
So suppose that the quoted English description fits in your case: when view the map the location marker is not visible, though if tap location button (bottom-right) the map moves at user location (means GPS works in app).
Google Play does not provide such features to its users.
I don’t see anything strange in Google Play messages, so cannot know why it does not work on that device with the old Android version.
If I find something, I could ask you for some private testing.
Or I could think for a fallback to a basic location marker for old devices that cannot handle modern rendering.