May I suggest you clean up your ruleset? I had to manually sift through and clean up all the unnecessary stuff. For example, in 'regions', all that you need is this for any given region:
regions:
- type: STR_NORTH_AMERICA
missionWeights:
STR_ALIEN_CULT: 18
But you have it cluttered with a bunch of other stuff which I assume is the result of directly copying from Xcom1Ruleset.rul.