I just had this problem today.
I had transferred BWV points into my account, which has an OKW home resort.
Theoretically, the BWV points would retain they're home resort status, but right now the reservation system can't handle it. So they got sucked up into the OKW, and were treated as OKW.
MS straightened it out, but when you xfer, you should have them add a comment about the points having X home resort, to be used for X reservation dates, from contract ABC, xferring person's name, maybe phone number, and as much info you can as to document this transaction. So that later, MS doesn't say, no, you only have OKW points!!!
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If I had a contract of BWV, then this would not be an issue, as long as I made sure that the BWV transferred points went into the BWV bucket. (Could be a problem for those of you who own multiple home resorts. Make sure your points go where you want them to. IE if had OKW, SSR, and BWV, make sure the BWV points go into BWV's bucket).
FYI - MS told me that they are to be trained on a new reservation system by April, so I'm hoping the new system will address this issue.
Hope this helps, Goldi