Q: XML to LPX - movie layers?

Hi Learned Ones

I'm experimenting with the new Logic XML features. I have a project in FCPX with layered video and multiple audio tracks. The primary video clip in the timeline (and all audio) transfer fine, but if I add titles or other clips above the primary clip, they don't transfer. So I made a compound clip containing the layered video and exported to Logic XML. The primary video clip continues to be the only clip which is transfered via XML.

Any suggestions on how to get a composited video track via XML into Logic?

Thanks muchly,

John