it says WARNING: This movie uses features that are not supported in the Flash Player 32 player
Symbol=Noise_1.mp4, layer=Layer_1, frame=1 H.264 video will not be published.
The purpose of importing H.264 video is so that you can animate over the top of the video. You would then export the animation using the ignore stage color, generate alpha option, and combine the animation file with the original video in another program. Premiere or After Effects for example.
The video that you embed need not be the highest resolution or quality. You could animate over the top of a 1 mbps 1080p version, then combine the animation with a 10 mbps 4K original.
for me it says: adobe media encoder failed to encode with the following exception: App.getscriptenginename is not a function
im having the the same problom WARNING: This movie uses features that are not supported in the Flash Player 30 player Symbol=Scene_1_video, layer=video, frame=1:WARNING: H.264 video will not be published.
cant fixed it