No stop pins on Shuttles route map

At least one user is unable to see stop pins on the Shuttles route map. This is happening on an LG Optimus G running Android 4.1.2. [Their screenshot of the issue](https://f.cloud.github.com/assets/244952/1213111/a9e50196-2623-11e3-819b-b734706c7b63.jpg).

I haven't been able to reproduce this yet.
