I've never done something like trying to combine 2 characters into the same scene until today.

If I click New or Open under File, it closes the character I had loaded into the scene. In DS4.

If I choose Merge, at least with one figure/character already in the scene, it makes her disappear and the newly opened file appear. I had 2 versions of V4 I was trying to put side by side in the same scene. Apparently however, the first version is still hiding in the scene, but invisible. I found that when I changed poses, the other suddenly appears mangled up inside old V4's body. So what's going on? I was under the understanding or expectation that the 2 characters would appear side by side in the same scene so I could transfer the hair & props from one to the other.

I'm using DS4 Advanced if that helps.