avplayer + avplayerlayer with composition as the asset
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I have created an avplayer and linked with an avplayerlayer which works well. I have also created an avmutablecomposition where the user adds videos clips to it on a timeline.

If the user adds a video clip from 0 - 3 seconds and 5-8 seconds and then i use AVAssetExportSession, there is blank footage shown between 3-5. However when i play the mutable composition there is no blank screen between 3-5, it will show the first clip until 5 seconds.

Any ideas?