I'm linking the FAQ (from which I took these issues) here
The parts I think are not implemented:
1-In the advanced variant, completed Panda objectives are supposed to be discarded as well as the other kinds: " When a player draws an objective card that is already fulfilled by the current game state, it is discarded (that includes Panda objectives)"
2-Also in the advanced variant: "The discarded objectives are put back under the pile they came from."
3-You are supposed to choose the order in which the two plots you didn't choose are put under the plot draw pile: " After drawing 3 plot tiles from the draw pile, the player places one in the playing area and puts the two others under the plot pile, face down, in the order of his choice."
4-General rules for Improvements: "A player who places a new plot tile in the playing area can add an improvement just before bamboo grows on it."