I have done a lot of testing on this situation to try and determine what the issue might be. It turns out that if I remove a single line from the on page style area the page seems to work correctly. I removed this line from the css around line 426:
After I made this update the page seems to be working correctly when you sort on a column. I have never encountered this before and I'm not sure why this causes a problem. I even ran through a css validation for the page and this line of code was not caught as a problem.