using "Single Pass instanced" or "Multi Pass" rendering along with MockHDM mixed lighting and Forward+ real time lights show missing lit clusters as you can see in the image below. the ground plane uses URP/Lit is gi static and receives ambient from a light map. the spot light is realtime only. turning of gi static does not fix it. so it looks like Forward+ and VR just do not play nicely together... using a simple scene with all lights set to real time i get the same artifacts.