Missed that you were doing a Blueprint Project. Once you’ve built and deployed once from the project launcher, you’ll then need to make a change to a scheme the UE4.xcodeproj
Select UE4Game - IOS > iOS Device
Select Edit Scheme (or hit shift+cmd+,)
Select Run > Arguments
Click the +
Drag-n-drop the .uproject file into the txt field.
After this you can select the Build and run button.
