Ember acceptance tests fail when running all at once

I have problems with acceptance tests (ember 0.10.0). The thing is, tests run successfully if I run them one by one (passing test ID in URL), but when I try to run them all at once, they fail cause of some async problems I think (such as trying to click on an element which has not been rendered yet). Has anybody faced that? Here's the gist with the example of one of my tests http://ift.tt/1Kr1iOC P.S. I tried to upgrade versions of: qunit, ember-qunit, ember-cli-qunit, but the problem still exists (edited)