Trying to change dropbox folder location, frozen while "moving" dropbox

Hey rosenrush, let's jump right into this!

Just to make sure we're on the same page here, did you use these steps in order to move your Dropbox folder, to your external drive? 

I strongly recommend choosing a location on the same hard drive as your operating system. Dropbox won't work correctly should the Dropbox folder ever become inaccessible, which can happen when you use an external drive.

Now, have you tried any of these steps, in order to remedy what you're going through with your files not syncing? 

Let me know more, and we'll take it from there!