Currently Most Annoying Issues

[Deantwo]

From what I've experienced today, Monster Encounters can spawn a bunch of huge monsters inside your bridge, even when landed on a moon with no atmosphere. That is also pretty random and annoying, although I imagine it's very rare.

I don't think I would classify monster encounters as a bug, but it is a rather strange feature. We have no way to really mitigate the issue, it is impossible to prevent unless you never trade with cities and having troops stand guard doesn't seem to help much.
See: hazeron.com/wiki/Monster_Encounter