That's because the command to append an object animation is
append object and not
append object animation.
I wouldn't worry if I were you though. The object won't interpolate properly with more than the original animation at the moment. It'll jerk as it loops back round. Very few people seem to be using object animation much though, so the problem hasnt really been reported much and probably wont be fixed for a long time.
Machine: P4 2200, 512MB, GeForce4 64MB, Audigy Platinum
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