Re Chapfo
Well, did you receive an email telling you to reapply after 12 months?
I also got rejected after stage 1b; I'm not sure if there's anything wrong with my personality. But the way I thought the interivew would be was totally wrong . I pictured the whole interview 2/3 technical side and 1/3 company background and turns out that I was wrong. So right after I walked out the interview I knew I studied the wrong thing and could've done a lot better.
As for the personality test, it's about your personality, but honestly I think personality can be changed throughout your course of life and correspondingly to your life experience. So I'm guessing that they'll give you a chance to improve?