The Unreal Engine 4 Genvid Module in 1.13.0 is an extension of the major changes started in version 1.12.0. This version implements a full Client/Server architecture.  The new Genvid Module is still compatible with the previous version, but the code is now deprecated.  You can find information on migrating to this version in the 1.13.0 release notes, or the Blueprint and Client/Server sections of the documentation.