So, I uninstalled Poser 11 and installed Poser 13. I installed all my figures in Poser 13 and then dragged the Poser 13 folder directly into the library. I was able to load my V4 into the window as normal and use all the morphs. Only the morph for the figure didn't work.

Now I reinstalled Poser 11 and installed all my figures in it. I then dragged that Poser 11 folder directly into the Poser 13 library. I can use the figures and all the morphs work.

It's weird that I have to install Poser 11 specifically for the body morphs in Poser 13 in order for the morphs to work there, via the Poser 11 folder in the library. It's a shame that it doesn't work without Poser 11. Otherwise, I'm happy with Poser 13 so far.

I have a screen of my library here