I've had some problems trying to reconnect to my dropbox. I had it connected fine the first time however after issues with importing my Traktor collection I used the Reset Mixo. When I try to allow Mixo to sync, I get taken to the next page that says connected but a pop up comes up saying "Something went wrong". I've logged in and out of Mixo, disconnected the app from Dropbox, tried logging out of all accounts simultaneously, and then decided to try to connect to Google Drive instead which also gave me the same pop up. I also tried a complete uninstall as well.