As long as the image fits in my display panel, it renders fine. If I zoom in at all, I get a glitched line appearance (almost like it's scanning across and not starting the next line after the correct number of pixels). Project is 4K (3840x2160) 29.97 fps. I have a MacBook Pro 16" with AMD Radeon 5500M Pro 8GB GPU
hunter-croft, this is an AMD user processor forum. I know nothing about MacBook. There is an AMD user video forum here. Enjoy, John.
You will need to contact Apple for support with this product.