Hello guys,
I'm having trouble converting MP4 to FLV file, after this latest update seems to me that it was discontinued this type of conversion formats of videos.
need to convert a mp4 to flv videos and integrate the timeline in Flash Professional.
See this for an explanation for the change regarding FLV and F4V and for the recommended workflow:
removal of FLV and F4V export features from Adobe Media Encoder, After Effects, and Premiere Pro