Bronislav,
not sure if this will be of any help but I merged Alien’s changes along with pull request from ChrisMonta: https://github.com/AlienRenders/UnrealEngine/pull/2
And DQ works fine. I like Chris’s solution more, because you can choose between Linear and DQ skinning, just check his pull request.
Anyway here is repo with both Alien’s and Chris’s changes and support for DQ skinning: