I have a completed animation that I'm trying to export as an mp4, and every time, several objects appear semi-transparent or darker like there's an alpha or brightness effect applied to the object when there isn't. Every time I export the video, it's the same objects that have this problem and nothing I do seems to help. I've tried actually applying alpha and brightness effects to the objects and just setting the values to 0, but this doesn't help either. The objects appear normal on the timeline, this only happens when I test or export the video. I've also tried exporting the video as a different file type than mp4, but the problem is still there. Does anyone know what's causing this? I'm using the 2020 version of Animate.