As I think others have suggested, the core problem is this: TT does not properly log off from Fidelity after doing its thing. (In my case it even fails to download, although it reports success.) So do this: after TT has finished, access your Fidelity account again, using your bookmark: you will find yourself still logged in. Now log out. Then try another Fidelity download: you will be required to log in again. (Yes, I've done this, and yes it works every time.)
At the end, make sure you're logged out all the way. Maybe this will get fixed sometime down the road, but until then we just have to work around the problem and make sure we're protecting our accounts!
