There are known issues with V4 and external runtimes. I believe upon installation they suggest you install under the regular runtime (not external).
As far as WW2 there is a workraround that is sucessful with other figures, don't know if this will work with you and your V4 issues though, but you can try:
Load V4 and inj all of her body morphs, save her to your figures library. Then load WW2 and use that saved figure to analyze your morphs from.

Hope this helps.

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