Forum Discussion
inserting LaTeX for vertical bar in equation editor
https://answers.microsoft.com/en-us/msoffice/forum/all/inserting-latex-for-vertical-bar-in-equation/38c52755-ac4d-4f0e-8402-e8e79143ab30 (also good), but inserting \left|{s}\right| + \left|{j - ...
This was originally reported on answers.microsoft.com, and I also submitted it via File/Feedback/Send a Frown, and it has been accepted by support, so I expect that a fix will be made.