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Hi I have run into this problem before and desperately tried to find the answer again but couldn't.

I rendered a scene, then edited in the video sequence editor, then went back to re render the animation and when I hit the render animation button it just produces blank black renders.

I am attaching a file.

Androfski
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    When I render your scene, it isn't blank. I can see your animation and the frames get written correctly. – Leander May 08 '17 at 16:24
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    If you have any strips on the VSE those take precedence over the 3D scene. In the post processing section you can uncheck the sequencer box and the scene should render normally –  May 08 '17 at 16:27
  • @cegaton could you please post a screenshot? – Androfski May 08 '17 at 16:37
  • I can't do that from my phone –  May 08 '17 at 16:39
  • https://blender.stackexchange.com/q/5285/1853 –  May 08 '17 at 16:41
  • @cegaton if you are referring to the sequencer and compositing checkboxes under post processing section of the render tab I have both of them uncheck and when I hit the render animation button it still produces blannk black renders. Could there be some cache to clear or something? – Androfski May 08 '17 at 16:43
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    See if any of the reasons for blank rendering applies in this case: https://blender.stackexchange.com/a/53633/1853 –  May 08 '17 at 16:46
  • @cegaton yes thank you for the link. Im stumped because I unchecked both those boxes and made sure there is nothing in the VSE – Androfski May 08 '17 at 16:46
  • @cegaton It appears that I have somehow accidentally copied the gun in my scene to every single layer. Could this be the cause. I am unable to remove it from one layer without deleting it from all the layers – Androfski May 08 '17 at 16:58
  • @Leander did you alter any of the settings to get the correct non blank render? I have followed all of the trouble shooting steps provided by cegaton and it still produces blank black renders. Im really not sure what to do at this point. – Androfski May 09 '17 at 06:34
  • So I found the answer. It wasnt showing up because I was trying to use an imported video that wasnt connected in the compositor and I had left background transparent on under the film section of render. After trying to render a part of the video further down I saw objects in the render. To fix this you have to connect it to the render like shown here https://blender.stackexchange.com/questions/48941/video-doesnt-show-up-in-render – Androfski May 09 '17 at 08:17
  • Post an answer with your solution then. In your uploaded file, I couldn't find any refernences to a video, thats why I didn't expect anything to be rendern during the first few frames. EDIT : beat me – Leander May 09 '17 at 08:19

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So I found the answer. It wasnt showing up because I was trying to use an imported video that wasnt connected in the compositor and I had left background transparent on under the film section of render. After trying to render a part of the video further down I saw objects in the render. To fix this you have to connect it to the render like shown at Video doesn't show up in render.

After it is connected the background video will show up in the render

dr. Sybren
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Androfski
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