I have a project with many many layers. When I try to apply Broadcast Colors as a Video Output FX to the whole project, it mutes a lot of my layers. I applied Broadcast Colors to tracks with material I considered risky instead, including the said tracks that disappeared, and that works fine. But I see no reason for this to have happened. I am thinking I may have found a bug? If it is any hint, a few of the layers are not using Alpha Mask as their composite mode.