Space station disappears after game load

[000x91]

I am using Mindustry Android build 146. Disintegration mod 0.1.0

I launched a space station for Serpulo. I could go to the new space station in the planets list. The "planet" view was empty space, but still, I could ">Go" to the sector. There was a core, a unit, and a little bit of buildable terrain. The flat planets map showed a tiny circle around Serpulo.

I quit Mindustry. I start Mindustry, but I can't go to a space station on the planets list. Also the planet map does not show a tiny orbit around Serpulo.

I checked to confirm: there really is a serpulo space station file.

Now, this part might or might not matter, because the space station mechanic is "campaign only". I tried to load the space station file in the editor, and there is an error