Looks like there's a missing if/else pair in BodyInstance.cpp
#Build 3283550 with UGS
Expectation: Builds
Result: Fails
ubt> UE4Editor-CoreUObject.lib (0:01.07 at +1:25)
ubt> Creating library D:\UE4_15_Release_Workspace\Engine\Intermediate\Build\Win64\UE4Editor\Development\UE4Editor-CoreUObject.lib and object D:\UE4_15_Release_Workspace\Engine\Intermediate\Build\Win64\UE4Editor\Development\UE4Editor-CoreUObject.exp
ubt> (0:11.66 at +1:14)
ubt> Module.Engine.27_of_38.cpp
ubt> D:\UE4_15_Release_Workspace\Engine\Source\Runtime\Engine\Private\PhysicsEngine\BodyInstance.cpp(3061): error C2181: illegal else without matching if
ubt>
ubt> Error executing C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\amd64\cl.exe (tool returned code: 2)
ubt>
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-41497 in the post.