Editor Fails To Launch After Building With VS

Windows 10 - Bootcamp - DirectX 12

iMac (Retina 5K, 27-inch, Late 2015)
3.3 GHz Intel Core i5
24 GB 1600 MHz DDR3
AMD Radeon R9 M395 2048 MB

Im having a graphics problem when trying to run an unreal project in the editor after building with VS2015. The build output is successful and looks like this -

When I run the editor it loads up to 95%. When the editor window tries to pop up it crashes. Debugging with VS gives this output -

As you can see in the above image I am able to locate the atidxx.dll module this crash relates to. It appears to be a problem with the .pdb file for this module. After trying several fixes for this issue I am unable to resolve the crash on this project. All other UE projects run successfully in the editor.

I have also tried to update my graphics drivers after finding out about some problems with more recent game releases being used on iMac. AMD have released an updated driver for retina displays, which I have also installed. No change after applying that fix. [Link to updated AMD driver][3].

Any advice or ideas on how to fix this would be appreciated.