Some devices (e.g. Huawei) is customized to allow only Default SMS app to write data into SMS database, it is a reason why you didn’t see completed messages on your default SMS app.
Why don’t I see completed messages on my default SMS app?
Some devices (e.g. Huawei) is customized to allow only Default SMS app to write data into SMS database, it is a reason why you didn’t see completed messages on your default SMS app.