Hi everyone,
after playing my first sandbox game (huge map) for a while now, I have a number of points that I miss or don't like. Possibly they are already mentioned elsewhere, but I rather play than read forums 
1. Why can another race not at war with you set up starbases in your territory when there is no open borders treaty?
2. After receiving the ideology bonus of reduced shipyard distance decay there is now no distance decay at all, even for planets with distance > 100 tiles from sponsored shipyard?!? I seem to remember that this worked correctly when I played the campaign ...
3. There is no option to see foreign ship movements after end of turn in areas within sensor range. So there is no possibility to see attacking ships in time other than manually checking the whole map after each turn change, what is very tedious and annoying.
4. In the ship information tooltip that is shown when you hover the mouse over a ship the range of the ship is missing. That is especially annoying when you try to find out the ships limiting the range of a fleet since then the panel in the lower left corner shows fleet instead of ship informations.
5. There is no list of found but uncolonized habitable planets.
6. When invading a planet there seems to be no relation between displayed attacking and defending power and success probability. In my current game the Yor attacked me several times already with attacking power of about 1 against defending power of about 4 and gott 100% success probability ... 
That said it's still a great game that only loses against Master of Orion 2 in the space 4X genre, but it leaves a slightly unfinished expression.
Greetings,
lyssailcor