I've been exporting objects to Poser from DS for clothing recently. I had an issue when I put sub div levels to base and had to reexport the object so the mesh resolution was base but left the sub div levels alone.

The other thing I noticed is that when you go to export injection files it also swaps where the browser goes to when importing a fbm for a figure. So make sure you're looking in the right spot.

The other thing looking at your morph is did you need to realign the bones in DS? If so you might need to do something similar in Poser.