So I've been playing the game for a little bit and so far I've come across 2 bugs 1) When creating a new map while selecting a map for a game, the UI will freak out when you return to the main lobby screen. It goes away after returning to the main menu and reentering the lobby. 2) I attempted to send a moon into the planet it was orbiting but for some reason, when I selected the planet to annihilate, most of the buttons and keys froze up. I was still able to select my commander through the C key and I was still able to realign the camera with the poles with N. No other keys or mouse scrolling would work. Other than this, the game looks great so far.
I encountered the second bug, too. I think it's a client ui bug - after restarting the client, I was able to reconnect and play further as if nothing has happened, until I tried to smash a planet - same bug. Reproduction is easy: Get a moon ready for planet smashing and click on "send to annihilate". It always "worked" for me in 3 different games (one of them only vs a sandbox AI). Happy Debugging
I've run into the second bug as well - though after disconnecting and reconnecting, I was able to smash the planet properly. Afterward though, I ran into a different bug: after launching the planet, the top resource tracker and the right-hand orders panel did not reappear. Honestly, I prefer how planet-smashing worked earlier.