Attempting to use the Rebuild option in Visual Studio will fail to build the project. It instead produces a message that "Epic was unexpected".
Build fails - Output message added to Callstack section
Files are updated and project builds all source code
1>------ Rebuild All started: Project: MyProject14, Configuration: Development_Editor x64 ------
1> \Epic was unexpected at this time.
1>C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V140\Microsoft.MakeFile.Targets(42,5): error MSB3073: The command ""C:\Program Files (x86)\Epic Games\4.11\Engine\Build\BatchFiles\Rebuild.bat" MyProject14Editor Win64 Development "F:\Unreal Projects\MyProject14\MyProject14.uproject" -waitmutex -2015" exited with code 255.
========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ==========
Head over to the existing Questions & Answers thread and let us know what's up.