Hi. So I upgraded to High Sierra, and I always do clean installs. Got it working like a charm, and had to go into Windows to do some CAD work. But now I want to go back into macOS, but I can't since the Boot Camp control panel no longer can see the macOS drive. Any ideas how to get it back? Without re-installing Windows. I can't use "alt" at startup since I use a non-flashed NVIDIA 980 Ti. The macOS partition is installed on a PCIe SSD, and Windows is installed on a 250GB SATA SSD in the drive bay. Mac Pro 4,1 to 5,1. Other specs in my sig. Thanks!