I haven’t gone into the source and checked the APIs for remote notifications, but the local notification ones that unreal uses were deprecated in iOS 10. Given you have it working in 9, I’d hazard a guess that the APIs used by unreal for remote notifications on iOS have been deprecated, too.
This is the intended behavior for the engine. If you wish to use remote notifications, you will need to build a version of the engine from GitHub where your project has bEnableRemoteNotificationsSupport set to true. This option will be disabled in a future release of the installed engine so as to prevent the confusion.
the guide was added that using git-hub version since 4.17?? installed version …
Do comment that code line which is some #define condition…
and I saw engine use some deprecated iOS delegate not only local notification but also other.