Its only a minor bug but one that seems to return often to me again and again:

For some reason the music sometimes stays in the version type you hear if you are for example on the research tree and stays that way even if you go back to the starmap again.

Not 100 % sure what exactly triggers it but i think it happened sometimes after certein Pop Ups (from quests) happened that it got stuck on this music version and just doesnt change back to the star map version of it again for the rest of the time.

So far only a full game restart helped fixing it, but its a little bit annoying if you need to keep doing that everytime after this happens.

Anyone else having the same problem?