I'm playing the US version 1.08 and when I get events that 'temporarily' impair my stability, such as a crisis in the court, except I wait the time specified, and the stability stays low. I just had a game completely spin out of control on a temporary event. I lost three on stability, and survived the '2 - 5 months' just fine. It was three years later that my country dissolved into civil war. Is this a known bug?