SE has additional entity prototypes for space ships that have landed on planet surfaces. The prototypes are created from their space counterparts with the suffix "-grounded".

It also creates copies of other mods' entities that allow productivity with the suffix "-spaced", so those should probably also be considered.

SE's phase-3/space-collision.lua has all the gory details about which prototypes get suffixes.

Thanks for letting me know about that! I hadn't made it to the starship yet when I released the mod, so I had no idea that would be an issue.

The grounded bug is fixed. As for the second one, I need to inspect the space exploration code more closely to know which machines already allow the productivity modules. Will release an update later when I have more time.

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Just to be clear, I think in a default SE-game there are no "-spaced" entities. This looks like a provision for mods that add assemblers with the se_allow_in_space flag set.