First published on TechNet on Aug 22, 2018 We’ve noticed an issue with updates being installed in some iOS devices. This has been seen in devices with iOS 11.4 and higher that are in a locked state and have a passcode set. Admins may see an error in the Intune admin console when they schedule software updates for these devices and updates will not be installed.
As a workaround, end users can manually install updates on their devices from Settings > General > Software Update.
This is an iOS issue and Apple is aware of it. We’ll keep this blog post updated as we know more.