Just curious, we're trying to add a set of videos to a prototype, and when we add it to our project, it:
- Shows up, with the right bounding box, but completely transparent.
- Does not accept a "Playback" animation. Gives an error: "Playback can only be added to Audio or Video layers"
This makes me think that it's either not accepting the video format, or something else is going on.
The file was exported from After Effects as a h.264 MP4.
Here's a sample file: https://www.dropbox.com/s/cddc8ube50mghvg/Driving%20Counter%20-%2059%20sec.mp4?dl=0