Curiously another point I would like to bring up that relates to this matter:

If I export in OBJ format, a base figure from Poser 11.2, I can then re-import the model as an FBM full morph target for that base figure with no problem. However, if I up the figure to a higher SubD level and repeat, Poser always tells me the vertexes do not match when I try to re-import as a morph target. The same happens if you try to swing a figure from Zbrush around as an OBJ (not going through GoZ) to Poser. Yet from a physical (pseudo) standpoint, if the version of the figure in Zbrush (having gotten there via the GoZ bridge) does not match the vertexes with the original figure in Poser, then a successful return morph via the GoZ bridge would not be possible. But yet it is. Mind you our vertexes are strangely moving around obviously but the point is, the vertex count has to match or it won't work. Now I mention this because this is the exact same thing in DAZ Studio. And while I know it's been somewhat officially denied, DAZ for a fact, intentionally sabotages their own HD import/export options to prevent outsiders from being able to make HD morphs for their Gen3-8 figures. They have some sort of key-plugin for their vendors which allows them to get successful morphs. I have an email from the vendor manager that states it to me quite plainly in addition to telling me I could only get the key for myself if I was approved as a vendor and signed an agreement of some nature regarding it. And so our glitch here just seems to me to be very, very coincidentally similar to what DAZ did/does. You can HD morph somewhat, but any ability to save or preserve the HD version doesn't work even when it physically should. It could just be coincidence, but it's one helluva one if it is. I'm waiting for responses on the people with 11.1 to verify whether the issue occurred with the previous version. What we know at this point:

1. It's not the figure you use.
2. It's not the GoZ bridge.
3. It's not Zbrush.
4. It's not the DSON plugin.
5. It only affects figures that have been subdivided using Poser's SubD. (Figures subdivided using DAZ mesh features do not do it even in PP11.2)
6. We can't even export the SubD figure and make our own morph target using Poser.
7. Attempts to copy (figure to figure) in Poser, a previously made SubD morph are not working well and have glitches.

This is starting to form a bit of a pattern to me. If you have 11.0 or 11.1 and it's still functioning, please test the GoZ with subD for us and let us know if you have this glitch. I think this information might be the final piece to the problem.

Thanks to everyone!