!!! This problem has been fixed after the 0.95 update !!!
Even after the 0.94 update my U.E. colony still doesn't want to open.
I have a previous post on this "bugs" forum (titled "Late game human colony won't open") that goes more into detail about my problem, so i'm not going to talk about it here.
Since i've made that post, i've tried to delete that colony and then restore it using a previous save, but that still didn't work.
I don't know what to do to anymore.