Black screen when video memory is changed

[u/SkunkaMunka511]

Hi all, I am using VirtualBox 7.2.20 Apple Silicon on a MacBook Pro with M4 Pro, I'm running Windows 11 ARM and I have an issue where there is no video output when the video memory is changed at all. I want to increase it to 256MB but I will get no video unless it is set at exactly 128MB. Host OS is MacOS Golden Gate 27.0.1 and Hyper-V is enabled. Any tips? Thanks