Mac - Xcode fails to build C++ project with a Shell Script Invocation Error

This does not occur in 4.25.4 Binary and is a regression.

1. Open Epic Launcher to the Unreal Engine tab
2. Click the 'Launch Unreal Engine 4.26.0' button
3. Create a First Person C++ Project in UE4Editor named "IncrementalTest"
4. Switch to the IDE after the project launches
5. Build the project for Development Editor in Xcode

• Games > IncrementalTest in left browser
• Select project and ensure it is set to use Development Editor for command-line builds
• Product > Build or command+B

Result: Build fails with a Shell Invocation Error in XcodeBuild.sh
Expected Result: Build completes successfully