Hi...
When you complete hand rigging (Step 4) your character will disappear while everything is finalized, but then should reappear in the animation player where you can preview different poses and animations and export.
I have checked this with a few different characters in version 1.2.1 and everything appears to be working fine for me.
If you are not seeing the character in the animation player, I would check your graphics drivers as this may be the issue. Try updating the Nvidia or AMD drivers and see if it makes a difference.
Peter
Forum Administrator
www.reallusion.com