Ah, Bob. The problem is clear.
You see that probe? Its outline is clear, perks of the new system
. But do this:
Place two Titans so that one overlaps the other. Select both. Now launch. Now revert to build. The grayed out Titan is gone. Now add another Titan. Select both again. Now hold and release the selection. Now launch. Both are there. Revert to launch. Both are there.
The probe may have been selected, but in reality it was grayed out. Holding and releasing the selection would have retained it.