telescope in rocket keeps "fully explored" status

in order to research the starmap beyond the first 3 asteroids, you need to build a telescope inside a spacefarer module and research the tiles while the rocket is in space

if you fully explored the starmap on the home asteroid, the telescope in the rocket will say "fully explored" and not generate any errands to research

deconstructing and building it fixes this problem temporarily until you have fully explored your surroundings.
when you move the rocket to the next tile, it's the same problem: telescope says "fully explored" - deconstruct - build - now it works