I have no idea which version of Daz Studio that you are using but the newer versions come with the FBX plugin which imports/exports the FBX file. I suspect that your problem may be with the rigging and based on that assumption I think the following links may be helpful to you.

I hope this is not breaking any rules - https://www.youtube.com/watch?v=K5Z9M03K8Ns  https://www.youtube.com/watch?v=j5E5DU8O6ho

https://www.daz3d.com/forums/discussion/305181/i-figured-out-fbx-import-into-daz-studio

If you do not have Blender you might want to download it and do the following

import to Blender and export another .fbx if the original .fbx wouldn't import to Daz Studio or  export from Blender as Collada (.dae). The .dae will come into DS with some things you don't need like a camera and a light, just delete them.
With this method you will not get the exploding .fbx or the .obj single object problems.