Sorry to hear of your continued difficulties in this campaign. Sounds like something is seriously off then. Have you thought of going to the Bug reports forum (https://forums.totalwar.org/vb/forum...Technical-Help), read the stickies and post it there for XSamatan to have a look at it.

I assume Kydonia is still rebel controlled? You could teleport an army there, conquer it with auto_win attacker, and then gift it to them then. There is no other way I can think of in that case.