Sapphire RX Vega 64 - Stellaris hangs on start up  / loading 

Describe your system:

• AMD Graphics Card
  • Sapphire RX Vega 64
• Desktop
• Operating System
  • Windows 10 64bit
• Driver version installed
  • Radeon Software 17.8.1
• Display Devices
  • Samsung C34F791 34" Silver Curved FreeSync Monitor 3440 x 1440 @60Hz Active Display port
• Motherboard + Bios Revision
  • Gigabyte Z77X-UD5H + American Megatrends Version F14
• CPU/APU
  • i7-3770K - Currently @ Stock Speeds
• Power Supply Unit  Make, Model & Wattage
  • Seasonic Snow Silent-1050 1050W
• RAM
  • 16GB

Describe your issue:

• Post Vega upgrade (did full uninstall of display drivers) Stellaris would hang on loading screen at "preparing game" section of loading bar. Contacted Paradox support.  Did a clean install of game. Issue persisted.  Tried many other games no persistent issues, but there have been issues. 
• Stellaris Adams build (no mods) v1.6.2 (d7ec)
• Desktop resolution.  3440x1440 Tried multiple resolutions and settings enabled/disabled. Game menu loads and you can change options but when you try to load the game proper will always hang on loading.
• Insert screenshot of frozen loading window here.....