I never had that kind of problem before, but I usually finish a geme before updating.
That exemple was from an AP game, but they do use the same files (apparently, since with the 1.2 update, suddenly AP had the logisitics tech as well - though no update to it was made).
I'm not sure which of the improvements have been cancelled: soil & habitat improvement, banking center, fusion & antimatter power plants, etc all gone. Shipyards too. And I couldn't see my trade good anymore either.
It was a grave act of sabotage from the altarian special forces. The retaliation came fast, under the appearence of a terror star that took care of their last system.
Next time, I'll know better than update right away...
Maybe ids are saved instead of codes.
End of quote
That must be something like that: since they added new wonders, maybe my saved game data didn't correspond to the new improvments id, thus their disappearence. Maybe :notsure: