It happens that after saving the Audio Settings with all the various sliders, the game saves them, but after restarting the game, it seems not to retain the audio settings.
The panel displays all the sliders set in the correct way as they were saved, but the audio settings do not respect the position of the sliders.
To fix this, I have to enter the settings, touch one of the sliders to restore all the settings.
For example, if I set the General Audio Setting Slider to 1, after restarting the game, the volume is at maximum, but the slider remains at 1.
After adjusting the slider, the audio settings return to working normally