The settings seem correct - Please rerun the video generation with the Ruby Console.
...and check that you generate all frames till frame 201.
Then you should get a a 'black' window for a few second (FFmpeg).
You can also check in the folder of generation whether you have all the image files, numbered from 1 to 201.
If you still get a truncated video, I would suggest you get the latest version of FFmpeg.
See this post for instruction