Thanks Claw; that’s a mystery solved. I realized that I was trying to lower the target nits down below 100 which the software won’t allow. I have an HDfury, so I can control whether the BT2020 flag will trigger HDR mode on my projector. Strangely though the software won’t keep the checkbox ticked for me (I want it checked so that I can specify that SDR BT2020 switches my projector to a custom iris setting for MadVR’s HDR tone mapping. Any idea why that might be?These JVC eShift projectors have a bug where they are unable to process RGB 8-bit HDR. The result is known as the Magenta bug. RGB 12-bit will work.
RGB 8-bit tone mapped to SDR BT2020 will work as long as you don't have "Report BT2020 to display" enabled. For some reason MadVR includes HDR metadata when that option is enabled. That also causes the Magenta bug to surface.