(bug) Nation of problems aka Zero based Class array issues

[YonathanD]

There seems to be a major issue with what we software developers call, "0 Based array" bug, noob mistake really:
Nation join, you join the nation to the left is the one that actually you join.
Nation tech, where tech tree in nation is the tech tree to the left.
Nation + personal research, where it wont complete nation research if the nation to the left has completed this before you did, because its considered completed in the wrong nation...
Nation Era victory, is awarded to the nation to the left.

let me just say i = 0

[skyrunner620]

this would explain so many problems I am having.

[YonathanD]

Is really bad, because a major part of the game is bugged. You cant win any Civ game, with one city.