Badly need some help with a fade transition. I have a single OBS scene with a single video capture source. I need to insert a 50ms black fade in/fade out transition into the OBS scene in order to create a reference point for detecting a 'scene' change within the recorded video. I've tried fading to a second OBS scene with the same video capture source but the transition doesn't seem to work. Any thoughts on how I can do this? Thanks.