Why doesn't the auto rotate function work

[AC Question]

The auto rotate function doesn't work. I have it switched on.

 

[Sam_Gs7]

This could be silly, but ensure the AoD=AlwaysOnDisplay
feature is Enabled in settings and also in the Pull down
control-Panel screen: To verify fingers swipe down
the unlocked screen & reset it from On to off
and turned On again..Restart phone-Bye