Animate CC won't export entire project (.mov)

I know this is a bit late as a response, but I faced a similar problem and couldn't find any answers that actually addressed the problem. I will share what worked for me here so that anyone else searching for a solution in the future may benefit:

I had a simple 13 second scene and for some reason only 8 seconds would export, rrgardless of how I tried to export/preview it. I decided to see what was the "change" at 8 seconds that messed up the programme. What I found was that I had a very large image (way beyond the frame) which I only needed a small part of that I had pasted, and that image was being zoomed out of. When I deleted the image and inserted a smaller sized item, the scene exported to the end. I'm not quite sure why the programme 'can't handle' a big image, but doing what I described above sorted out the problem.

So to summarise: go to the point at which the export cuts and try to work out what has changed that has 'messed up' the porgramme. For me, it was image size. 

I'm no expert, but I hope this helps

I Suggest if you try to check the frame it stops at . try to modify this frame by removing or adding any of that thing that might be the reason of stopping at. and then try again if it passed this frame then its the reason and my happens in later on frames

Do you have a computer that could handle such a big export?

If not you can export it in sections and the edit together in Premiere or After Effects.

to export in mov format you should choose export video ,

then you choose the location and file type .mov and the frame size

good luck

Dr. Ayman