so i was about to watch this youtube to confirm how to update dual graphics and check out what they added:
https://www.youtube.com/watch?v=XI5JXIn9VbA
the user is stating the new crimson drivers dont work for dual. amd nevera dull moment. ok here's what i think you should try that video was released before the new fix so try the fix
i would use the autodetect http://support.amd.com/en-us/download/auto-detect-tool save the new drivers to the desktop like a file. uninstall old drivers and then add new ones. confirm its the fix http://support.amd.com/en-us/kb-articles/Pages/AMD-Radeon-Software-Crimson-Edition-16.1-Hotfix-Release-Notes.aspx
its also possible you may need to consider disabling the dual set up and just run the game with the 270x, again since you only have w10 you only have one prior drivers, until amd provides better drivers if the update doesnt fix your issue
