Have the same issues, no issues on FP., but nomatter what I try in settings, I either get a stretched landscape view or the one shown above. 4K display, but also tried lower resolutions such as 2K. Only way to get it working in a playable way was to change to portrait mode for the playfield and use testdesktop option. Used the old version of VPVR with the VPinballX_GL.exe from Rafal (did not try again with the current buld as it was quite late already)
Have the same issues, no issues on FP., but nomatter what I try in settings, I either get a stretched landscape view or the one shown above. 4K display, but also tried lower resolutions such as 2K.