ember.js: Getting "Uncaught Error: infinite rendering invalidation detected" with 2.9-beta3

In attempting to test compatibility with ember-beta I’m seeing an issue. With 2.9-beta2 I was getting a white screen with no ember container and no content rendered. With beta3 I’m getting a flash of the content followed by a white screen, but now I’m seeing the error “infinite rendering invalidation detected” in the console.

Code (with updated ember) is here: https://github.com/ilios/frontend/tree/ember-beta-test

Demo which shows error can be seen here: https://ember-beta-test--ilios-frontend.netlify.com

It does not show up on the login page, only post-authentication so you have to login. You can do so with: username: demo_faculty1 password: demofaculty1

The error seems to be present on every route.

I also tried a build with #master but it has the same error. I’m not sure how to track down where the issues is occurring because the stack trace is just full of ember-debug lines, but I’m happy to provide any info or help. I think my next step is to start pulling out individual addons to see if I can find a culprit unless someone else has seen this error or knows about it already. It seems strange that the /login is not affected, but every other route is.