This is what happened when I took the 2 shapes and added it to my original shape with specify target node and target index unchecked.

blendShape -e -ib -t polySurface1 0 EyesShut 1 -t polySurface1 0 EyesShut1 2 polySurface1;
// Error: Weights must be unique for inbetween targets. //

When I click and specify node and selected existing nodes it works fine, but it doesn't add inbetweens.


When I click on inbetweens, I have no idea what target index is, so I leave it blank and this is what I get:

It says weights need to be unique for inbetween targets again.

So.....what's going on here?