Just a heads up @BIGNEWY I stumbled into this post when trying to figure out why I am having the same problem. In my case, I'm not in VR, but I have my MFCDs exported to a monitor to the left of my main one, aligned with the bottom. My coords appear to be offset exactly to the left, but not down. So it appears that the Ruler and Coordinate system are scaled to the overall window size and not the GUI window size as reported in the monitorconfig.lua.