Maya Plugin Error: Error: FBXExportCharacter is now deprecated. Use FBXExportSkeletonDefinitions.

I’m trying export a physx scene from maya, I get this error:

// Error: FBXExportCharacter is now deprecated. Use FBXExportSkeletonDefinitions. //
// Error: file: \ClothingExportCmd.cpp 1172 @ClothingExportCmd::ExportFBX //
// Error: (kFailure): Unexpected Internal Failure //

Maya2013x64 on win7, maya physx plugin version 2.89.00313.15090, fbx version 2013.1 Release(180734)

There are no characters (rigid bodies only) and no clothing, I have “Export Apex Clothing” turned off.
I have “include FBX” turned on, if I turn that off, it exports the physics file.
The physics file it saves does not load into Unreal (“Import Failed”) for either the XML or binary.

Do I have the correct versions of everything?
Is this a known bug?