Thanks for the info. I'm not seeing any obvious problems with that... the Intel UHD 620 GPU seems like fairly recent hardware, and the driver version number seems pretty up to date (from over the summer?) Are any other 3D applications giving you rendering glitches? If you feel comfortable doing so, you might try upgrading your video drivers to the very latest version: https://downloadcenter.intel.com/product/96551/Intel-HD-Graphics-620