Thanks for reply. This were my settings:Servo AFFlexible zone AF/1 Whole AreaOrientation-linked Af point separatedSubject PeopleEye detection autoServo Af autoas described in this documenthttps://cam.start.canon/it/C018/guide/html/AF-06_Subject_0200...
It happens to me too shooting for hours in iceskating competitions. R1 (also with prior firmware) with RF 100-300 or RF 70-200. Never happens before with R3.Now when I shoot for hours I have got into the habit of switching off and taking out the batt...