I was not aware that team should be assembled, but base was (automatically) set up. Now I checked with team assembled too (click to assign soldiers in dropship screen) and still problem persists. This is in moment just a simple map of what should be center part of cargo ship, such ship could probably be even assembled from map parts? So it has only huge loading area and stairs. I started some small maps and in beginning they are shown in game but after adding levels (which is essential in building ship) they start to give aforementioned error.
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