I am trying to help a friend with a LenovoTB-X104F tablet. running Android 8.1.0. She has both Astro and Dropbox installed. The Dropbox app is working perfectly and Astro works perfectly when accessing locally stored files. However, when her Dropbox is added to Astro and any attempt to access the Dropbox files through Astro is made, it always returns the error message "Astro has encountered an unexpected problem..." Has anyone out there encountered this behaviour and, if so, how did you fix it or work round it?