Shake + Motion Intergration

Hey Guys

Has anyone noticed that if you bring a Motion project into Shake as footage, that when you go to do a Disk Flipbook the Motion footage is not rendered out, however when rendering is done with a Flipbook it renders it out this is also the case with Fileouts, thankfully.

No really question just some thing I had noticed, I guess I am sort of asking if there is a reason for this or is it a bug.

Mac OS X shake 4

Later