I used to have this problem occasionally on my old S21 Ultra Dave. The only way I could resolve it was by switching the camera to video and then select the 10x lens there. For some reason this would focus well. Then I simply put the camera back into photo mode and re-selected 10x mode again. This time I would have no problems here and the lens would work fine. A peculiar problem, and I hope this tip works for you until an update fixes it permanently. Good luck. 👍
