@Gnl_Jakes I was contacted by Deakin Peng from TP-Link Technical Support. Since then, the traffic statistics have been fixed for the day, but there is still an error for the week view. I will contact...

Using the Tether app version 4.6.14 (current latest version in Google Play Store) on Android (Samsung S21), my router (curent latest firmware) shows traffic statistics in the future. Day view...