In case you have not noticed, but Shapeshift.io has been hacked and the site is down. https://www.reddit.com/r/shapeshiftio/comments/4duo9a/foxin_aint_easy_we_will_be_down_for_a_few_days_as/
The good part is that due to the architecture no-one lost their funds. Shapeshift lost their hot wallets though.
For the NuDroid users it means that you can’t use Shapeshift, and with that the seamless Bitcoin conversion for the next few days. You can still transfer USNBT to other exchanges to have them converted to what you need though. Just not that convenient.