I take it thats on windows 10? 1 don't install it to any Program files folders, that immediatly messes with it, run the installer and install it to somewhere like C:\Games once installed, run and configure it, and test it in QB, IDK why but that suddenly worked for me when my old install was broken as hell, guess it had some missing reg keys messing with the render engine. im not suure exactly WHY its happening though, could be a number of things.