Can preview flash animation in xara Designer pro x but can't export it to avi.

[yellowbird]

I created a flash animation in Designer pro x. It is like a youtube example with the plane flying across the screen and changing size. One plane flies in front of the building and one behind. It previews fine in the Xara. When I try to export it to AVI, (uncompressed) I get the error: Failed to tween object "plane1" Blend error: It's not possible to have nested tween names between frames "NA" and "Frame 1". Errors if I try to export it to swf too. I simplified it with no other graphics than just the one named plane graphic going across the screen in two frames and still get the same error. Thanks.