What's also annoying is forcing people to open your thread to see your issue. If you want more people to help you, I'd advise putting your issue in the thread title in some way. I am sorry but I have no idea what's up with this glitch.
Whoa, time for a nap or something. Nobody "forced" you to do anything. And even if the kid put "Jumping glitch" in the title, we'd still have to open it to find out what (s)he is talking about. No need to jump down people's throats.
I haven't encountered this bug myself, but I'll try testing for it. I'm playing through kind of slow at the moment, noting all the errors I find so I can report them. If I can get stuck, I'll report it, and if I can figure out what the solution is, I'll report that too. However, it's highly likely it's a collision issue. Not sure what could be done to fix it, or how widespread it is; if it's an easy fix, it will probably end up in a mod or "unofficial" patch.