Ideology:

Benevolence:

Discover a new class 10 planet, it doesn't seem to work, the tooltip says "nearby" but when I checked all the systems near my home system there weren't any new planets that appeared.

A new class 16 planet joins your empire, I don't know if this is a bug or not or if its just random but the planet I got uses the Earth-Like model, map and all associated imagery. But it was actually classed as a Frozen Planet and had all the deficiencies of not having the appropriate technology researched.

Pragmatic:

Free freighter and trade route: You get the freighter but no trade route, broken with Beta 5, worked with Beta 4.2

AI:

Possible issue with AI knowing where all the colonizable planets are without scouting. I meet a faction and then its like they suddenly know where all the uncolonized planets are in my territory and send multiple colony ships on a direct path for the planets I'd be sure they wouldn't know exist because I just met them.

Performance:

Starbase screen stutters upon opening the upgrade screen, new issue didn't occur during Beta 4.2

Fleet battles only work sometimes, they make the game freeze up forcing you to terminate the client. Same thing occurs with invasions.

Trying to load autosaves frequently causes the client to crash to desktop.  

Game Creation:

Creating new custom civilizations, the preview model of your ships doesn't display it shows the default terran ship but when you change it, the model disappears and never comes back.