I have recently noticed two very irritating production bugs. The game sometimes doesn't recognize a newly built factory on a planet, the number of production units just stays the same as before. For example, in my current game (it's very early on in 2225), I was building a basic factory on a colony, and just when it was completed I discovered xeno industrial theory, or whatever is the name of the tech which upgrades basic to "normal" factories. Anyway, I had an upgraded factory on a colony, and the planet still produced only 3 production units per turn, as if there was no factory. This happens often, the problem is solved if I save the game position and load it, but it is very frustrating being forced to keep eye on every colony for something that should work normally!
The second bug is that the program often "skips" production on a world in one turn. It is very noticable especially in the early colonization stage of the game, a factory would take more turns to build then what you see on the screen. 10 turns, then 9, then 8 turns, then, for example, the program "skips" a turn and tells you still need 8 turns, etc. Frustrating.
Have you experienced these bugs as well?