Super Mario Maker - broken Super Star visual effect
In Super Mario Maker, the Super Star powerup has a sparkling light effect when the level was created in the "New Super Mario Bros. U" style (but not in the other styles). In Cemu, this effect continually increases in scale until it fills the entire screen and you can't see anything until you collect the Star or it goes off-screen. The effect is supposed to stay about the same size as the star itself.
This issue affects both OpenGL and Vulkan, and I can reproduce it in Cemu versions 1.17.4 thru 1.19.0d (did not test older versions).
NVIDIA Driver version: 445.87
For reference, this video is an example of how it is supposed to look: https://www.youtube.com/watch?v=D8dIA8nOsdc