[v1.0.1 (4d15)] Alien fleet repeatedly detected at home planet - no fleet present

[lordolorin]

I started a game with the release version, completely vanilla. After a while in the game (especially when not much is happening otherwise) I get a popup telling me that unidentified aliens are in my home system. I can't research this as a project, and every time this pops up there are most definitely NO ALIENS in my home system. See picture below. Keep in mind this is happening every 5 or 10 minutes?

EDIT: Seems to be fixed

 

[Leonick]

I think this is nomad fleet as these start happening after they introduce themselves (often with a few right after). You can find the mentioned empire on the galaxy map afterwards.

You the generic alien vessels detected messages but they always say they were detected in your home system, the temporary name instead of being alpha or gamma or whatever is the actual empire name and there is of course nothing in situation log.

Also, empires introduced to you via the nomad fleet does not trigger the message about meeting first intelligent alien life, that message instead appears when you make contact with someone the normal way.