blur motion under command, not work...why?

hello

blender GUI worked rendered with blur motion, but blender command not worked rendered with blur motion?
why?
maybe i’m wrong something maybe…?

blender last version 2.74

file blend did activated blur motion, with render internal.
command: render result (not blur motion)
blender-GUI: render result there are blur motion as normal.

this is BUG or I’m BUG?

thank you

nothing respond?..

maybe i’m not explain good?