On 2 different Windows PC's, Win 10 Desktop Nvidia RTX4070 graphics card and Dell Inspiron Win 11 laptop, after starting GOG Space Engine once and closing it down, next time you start it there is no main menu and the initial graphics video is frozen. Also there is no sound.

Not sure how to supply ...

If you centre on Earth and Goto Earth then turn orbits on there is a red orbit (presumably barycentric orbit of Earth and moon) coming from centre of Earth. None of the Orbit/Marker/Label controls work on this orbit so it cannot be hidden. You can only hide it by turnong off orbits completely ...