I was trying to land my ssto at the runway, but something was wrong with the SAS. While in space, I turned off SAS and the craft started pitching down violently. When SAS was back on, I tried to pitch up, but the craft didn't want to. Only down. It's definitely not a problem with the craft. I looked at the gauges on the left of my control interface, and on the pitch gauge, there was not only the yellowish marker that shows my SAS usage, but at the bottom of the gauge, there was also a lavender marker. Other than the color, it looked the same as the yellow-orange one. I turned off SAS again, and the orangey-yellow marker shot down and covered up the purple one. Like I predicted, the craft pitched down. Can someone tell me how to stop this? I clicked on the cockpit and it said: SAS Locked. Help!