So I loaded up your project file and couldn’t get the CSV file to load from your remote URL. I suspect it is due to a CORS problem. So I downloaded the CSV file and saved it locally, adding it into the RapidWeaver Resources. This is one of the ways (the main way) of using the stack that I look at in the tutorial video. I then linked the stack to the version of the CSV file that is located in the RW Resources. Note I didn’t change the CSV file itself in anyway.
I had to move the Table stack out of the other stacks on the page as I don’t have them and it was preventing things from displaying properly because of it. So if you notice the page looking weird, that is why. But since we’re testing the Table stack itself right now, we’re good to go there.
I made this video showing sorting working on all columns within preview: http://d.pr/v/idW7r
Is this your same experience in Preview Mode?
So I did a live preview in Safari and get the same results: http://d.pr/v/ocOXoB
Either one of the stacks on the page that I don’t have is causing a problem, or something else that I’m not running into here is a problem. I suspect it might be the former.
My suggestion would be to make a very simple test page, placing just the Foundry Control Center and the Table stack on the page and seeing if you encounter the problem. If you do not, then it is likely one of those other 3rd-party stacks your using on the page, that I don’t have access to, that is causing a problem.