Why can't I can use anymore the Test Automatio

Question

So basically, I'm using Visual Studio Online for some months, and I've a lot of existing test cases, each being associated with a unit test thanks to the Test Automation feature.

Since a few days, I cannot anymore associate test automation to my test cases. Might be related to the changes that have been introduced with the December 10th update: https://www.visualstudio.com/news/2015-dec-10-vso

Basically, all existing and new test cases now show an empty screen instead of the UI that allows me to specify which unit test is associated with the test case. Here's an screenshot from VS 2013:

Displaying the same UI from Test Manager also shows an empty UI:

The only way to display the fields associated to the test automation is now to use VSO:

The problem is, those fields are read only.

I've managed to modify my SCRUM process to slightly alter the Test Case work item type UI:

So now those fields are displayed here:

Those fields are not read only, but I do not have anymore the UI that allows to automatically fill them by choosing one of the unit test within the VS Solution.

So basically the question is: what's wrong with VSO, how can I use test automation again? Is this a bug/regression?

Similar (unanswered) question: https://social.msdn.microsoft.com/Forums/vstudio/en-US/6a09c3ac-168b-40ff-99f3-87955cf7e6ca/associated-automation-test-case-screen-is-blank?forum=TFService

Answer 1

This is a known issue that we introduced recently. We have a fix for it, and we will hotfix the service today or tomorrow.

Sorry for the inconvenience.