Ember "transition was aborted"

I have a route in my Ember App Kit project which fetches from a REST service. This is the code: ``` var PatientsIndexRoute = Ember.Route.extend(Ember.SimpleAuth.AuthenticatedRouteMixin, { model: function() { return this.store.find('patient').then(function(res) { console.log("success"); return res; }, function() { console.log("error", arguments); }); } }); export default PatientsIndexRoute; ``` However when I navigate to the route (`/patients/index` in this case) the page appears to do nothing. Here is the console: ``` 23:09:46.946 OPTIONS http://localhost:7000/patients/ [HTTP/1.0 200 OK 1ms] 23:09:46.881 "Attempting transition to patients.index" ember.js:3450 23:09:46.883 "Transition #3: patients.index: calling beforeModel hook" ember.js:3450 23:09:46.883 "Transition #3: patients.index: calling deserialize hook" ember.js:3450 23:09:46.948 GET http://localhost:7000/patients/ [HTTP/1.0 200 OK 4ms] 23:09:46.911 "success" app.js:171 23:09:46.912 "Transition #3: patients.index: calling afterModel hook" ember.js:3450 23:09:46.912 "Transition #3: Resolved all models on destination route; finalizing transition." ember.js:3450 23:09:46.915 "generated -> controller:patients.index" [object Object] ember.js:3450 23:09:46.918 "Transition #3: patients.index: transition was aborted" ember.js:3450 ``` Notice `transition was aborted`: this is a generic message shown whenever the transition is aborted, however I can not determine where the transition was aborted from. I don't think it's being aborted while fetching the model, but some time after `afterModel` or `setupController`. Interestingly, if I remove the `model` function it will navigate to the route. Also weird: it renders the wrapping template `templates/patients.hbs` but not the `templates/patients/index.hbs` template. EDIT 1: Here is the router: ``` var Router = Ember.Router.extend(); / Router.map(function() { // Auth-example this.route('index', { path: '/' }); this.route('protected'); this.route('login'); this.resource('patients', function() { this.route('new'); }); }); export default Router; ```