Auto-lock set to never. Screen still turns off.
I need to keep the screens always on several iPads that are used as kiosks. I have set the Auto-lock feature to 'Never'. I put them in Guided Access mode, but about of two-thirds of the devices will still go to sleep. They seem to sleep at random intervals.
Is there another setting I am missing? The problem existed before and after upgrading to iOS 12.
iPad (6th gen) Wi-Fi, iOS 12.1, null