If your video is black yet you can hear the audio:
you may have imported a multicam clips from Premiere/Resolve
and the top track is enabled but there is no clip there
Eddie flattens the multicam clip when it transcodes it and ingests it. Eddie uses the top track as the video layer. So if the top track is empty. the transcoded video will be black.
Solution: disable / delete the top track in your multicam clip.
Then create a new project and reimport your multicam clips back into Eddie.