looks like some kind of Level of Detail bug to me
maybe caused by some data mixup between client and server
Be sure to file a support case to inform MA of your issue (maybe post a link to your thread)
I don't think MA support even looks at EF (I'm sure they are pretty busy with their own ticket system and not looking for more work)
>I don't think MA will do much tho...but it's good to bug them about it