When playing, notes keep dimming quite a bit over a 30 second period of time give or take. Then, they'll suddenly brighten to as bright as they should be, and this process will repeat. This didn't used to be a problem, because it didn't affect the render. But it's affecting the render now, and I'm not sure how to go about fixing it.
This picture is after it brightens back to it's normal state
This picture is before it brightens
This most likely would have to do with the Texture feature.
Try turning off the Texture feature in Effect Settings (third button from top right)
If you want to use the Texture feature, make sure you have the correct Texture file selected in Texture Settings - click the filename button at the top to select the Texture file you want to use.