So after contacting Fly tampa by e-mail they provides me with a 2.8 version (Understand it is the beta currently tested)
It did solve the issue on my end.

I have ask for a refund.
Will happily buy it again once they solve this issue.

Hello, Just bought this add on and I'm having the same issue on P3D V4.1all the ground texture is black. No matter what month it is november august june whatever. I try to turn off and on HDR but no luck. Is there a fix available or foresee in the very near future ? Otherwise how do I get a refund ?...