First time ToonBoom Animate Pro user here. What causes videos to export with a black screen? What I’m running into is that the picture will show for a fraction of a second when the video first starts playing, then turn black the rest of the time. I heard this has something to do with transparencies or something like that, but I’m not clear.
Do you have a background in your animation? If not you’ll need to add a colour card.
If you want to export just a character with a transparent background you can export your animation as PNG4 image sequence.