I just checked it out, and for me it did indeed carry over with a full vault.
Care1369--the issue may be that you emptied your vaults. A few friends and I completely lost the storage we'd purchased prior to the update, and it seems that the lack of items in the vault was the problem (these were for recently purchased houses, I do not know if that is relevant). Was your purchased storage space there in both houses before the move?
No matter what, I hope you have bugged it and send a support ticket online for both accounts. I was unable to get assistance in game or out, but if the reports come in they will be aware of this issue.
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