No, you’re not hallucinating, the context menus have disappeared!

A couple posts started surfacing this week regarding system context menus no longer rendering, see:

Access 2016 Context Menu Problem
Right click not working in Access 2013
Right click on the title bar doesn’t work no more !
Changement du comportement du clic droit dans les formulaires et états avec Access 2016

I immediately forwarded these reports to Microsoft and this evening they advised us that a fix should already be in place! Apparently, one need only shutdown Access and restart it and the issue should resolve itself. Worse case scenario, the fix may need a day to propagate.

If you are still experiencing the issue tomorrow after a shutdown/restart of Access please let me know by posting a comment so I can forward this information to the Access Dev Team.