Just had [this](https://answers.microsoft.com/en-us/msoffice/forum/all/shortcut-to-tag-outlook-categories-is-not-working/38ac4113-a5d2-43b4-90a7-7adb5f8b3253?page=1) case in my company. Thought maybe you would like to know that:
After the latest patch for Outlook, the shortcuts to assign categories are not working anymore.
” hey have a bug for it and are working on the fix – the bug affected 16.0.11325.10000 and the fix is expected at the end of the month or early March (for Current channel). “