Ok I have a question about the missing poison chest.
First, yes, I could obtain poison at the beginning of the game.
Well, when I was playing I specifically avoided the chests for the zodiac spear. However something happened. Those chests were only there the first time I was in an area. For example, the chest in front of Dalan's house was there the first time I visited him, and I did not open it. Later on, when I had to visit him again, it was gone. Similarly, the chest in the cellar was there - but then I went back to the stockade room to save my game, and when I returned, the chest was gone. Is this normal? I didn't notice it in the original but I can't recall if it is supposed to happen. Perhaps it is related? Or not.
Also, my jobs in game:
Vaan - Monk
Penelo - White Mage
Balthier - Hunter
Fran - Machinist