The horizon's repair link remains visible after expiring, if the ship is under AI control.
As an extra note, is there any way to tell if the star cluster modulator is working? No flux transfer appears to happen regardless of how close i put my ships together, even if one of them has no flux at all. Furthermore, the dissipation rate is the same regardless of the presence of the hullmod.
Edit: Having now used the non translated version I can confirm that the modulator simply doesn't work at all, as there is a cool graphic that shows it working in the original.
Another edit: When an officer gains levels from North Star Academia, they do not receive any skill points. End result is a level 20 officer without the skills of a real level 20.
Yet another edit: In regard to ship systems, the flocculus (and its smaller cousin with the same system) will not use its ship system in ai hands, and anything with a vortex drive or equivalent uses it on cooldown, causing many unnecessary losses/suicides (although this is more of a general starsector issue).