https://bugs.winehq.org/show_bug.cgi?id=40513
--- Comment #16 from sworddragon2@aol.com --- Based on the specification the integrated graphics chip should be an "Intel HD Graphics 3000 DX10.1". I'm not sure how graphics switching is done on your system (reboot or during runtime) but since the 2 graphic devices are from different manufacturers they might use 2 different drivers. And since it works with the NVIDIA one I think this is a driver bug and not a Wine bug. Also I have rechecked this issue with Wine 2.0 RC5 (GeForce GTX 650 with the proprietary NVIDIA driver version 367.57) and the mission map looks fine.
Which drivers are you using with your dedicated and integrated graphics device?