Call to undefined method in FIOSPlatformMisc::MessageBoxExt

MessageBoxExt calls a method name ShowAlert: with the IOSAppDelegate as a receiver, but the IOSAppDelegate class does not have that method implemented which results in a crash whenever MessageBoxExt is called.

The line responsible for the call is:

Looks like it may have been a bad merge or some such.

This is happening on a shipping build compiled from Xcode.

Reproducible: always.
Engine Version: 4.7.5

Thx for bringing this to our attention. I’ll look in to getting a fix put in.