Problem to bind [(ngModel)] in <md-radio-group> highlight at startup fails with class attribute

Hey people,

I’m using Angular Material beta 7, and I have a component with the following code snippet

{{question.answer}}
<md-radio-group [(ngModel)]="question.answer" name="question{{i}}">
               <div id="problem" *ngFor="let alternative of question.alternatives" class="my-class">
                  <md-radio-button [value]="alternative.id">
                    {{alternative.title}}
                  </md-radio-button>
                  <div>remove<div>
                </div>
</md-radio-group>

if the div#problem has class attribute the [(ngModel)]="question.answer" in md-radio-group doesn’t bind when the component is started, see below behavior when div#problem does not have class attribute:

But if I add class attribute, the bind does not work when the component is started.

Demo: http://plnkr.co/edit/k3xXPY?p=preview

Simulate the problem when you add and remove class in div#problem

[GustavoCostaW]

Closing this issue because it’s apparently a bug in the Angular Flex Layout

Check: https://github.com/angular/flex-layout/issues/322

Thank you @willshowell

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