We have an established CI process which links 118 Ranorex test cases to MTM test cases and runs them on a dedicated automation VM, which is triggered by a timed build in Visual Studio.
The CI process is still working correctly, but I have just tried to add another test and found that due to changes in the layout of the test case work item page in VSO/MTM, the 'Associated Automation' function is no longer shown.
So you used to click on the ellipses and the list of test cases to be linked would appear: VS CodedUI MTM_VSO work item linking
As you can see in this image, the 'Associated Automation' tab has moved and the linking mechanism is no longer present: Missing MTM_VSO test case mechanism
I think it is tied into this recent Microsoft VSO update hxxps://www.visualstudio.com/en-us/news/2015-dec-10-vso (sorry for posting the link this way but I can't have more than 2 links) but I wondered if anyone else had encountered this issue and how to resolve it.
Sorry for the long post, but I wanted to make everything clear.