impossible to change a ringtone (phone, text messages, notifications) on redmi note 13 pro 5g

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Hello,when I go to sound and vibration =>Ringtone => Pre-installed ringtones => Ringtone => and I choose a ringtone other than the default ringtone, I hear the melody but I don't get the checkmark when I select it, so impossible to change ringtones whether ringtone, alarm or notifications.Thank you for your help. ...