Doesn't sound like any glitches to me. It sounds like the program is performing exactly how it's designed to. But, of course, much depends on which version of the program you're using.
What are you doing and what exactly is happening that you don't want to happen?
Can you post a screen capture of your timeline so we can see all of the clips that may be coming into play?
I don't understand what you're saying. Are you saying that your issue has been resolved?