Auto-Lock in iOS 18.4 not working. iPhone 16 Pro

Since updating to iOS 18.4 the auto-lock on iPhone 16 Pro isn’t functioning. All settings remain unchanged from previous versions, however the display will not turn off.

Same iOS on my older iPhone 11 doesn’t have the issue and screen turns off as usual with the same system settings.

Have tried a force restart on the 16 Pro, nothing changed. Any ideas?

Same on iphone 16 pro max

Same problem here, only after 18.4 public beta 1, iPhone 16 Pro Max

Auto-Lock in iOS 18.4 not working. iPhone 16 Pro
 
 
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