That's all there is to it. When I deploy ramships on Choo Four (planet ID 2667, pos [-1112.49, 271.52], era 3 game if that helps), I am unable to send them to other places in the same nebula.
Screen Shot 2017-11-06 at 10.53.55 PM.png
watch tv, do nothing 7 Nov 2017:
Several people have reported this in the forums too and it seems to be a bug that has surfaced only since the Era 3 changes.
watch tv, do nothing 11 Dec 2017:
May be true for all nebular worlds now in Era 3? Any example of nebulas where ramjet passage is still possible?
george moromisato 16 Jun 2018:
Fixed with new nebula implementation.