When attempting to login using the dropnet sdk for Windows phone 8.1, for the most part I usually have no issues but recently I've been running into the problem where multiple times I would need to re-login until I finally get to and past the allow page before being able to browse through the files.
While debugging I've noticed that this case gets fired, under ProcessResult(...) inside DropboxOAuth.cs
case WebAuthenticationStatus.UserCancel:
throw new OAuthException(result.ResponseErrorDetail);
DropBox API v3.0.5
This always occurs when touching anywhere on the screen or even pressing the Sign in blue button at the bottom. Sometimes it gets glitch-like as well: 
Has this been herd/seen? If so, any workarounds would help!