Object not outlined in Viewport despite Outline Selected enabled I'm working on some models someone else made as part of a project. The .blend files they've given me have several objects that get no selection outline in the viewport despite Outline Selected being checked. Other objects work normally. I assume there must be something else that can cause an object to not be outlined, on a per object basis.

Can anyone tell me what this might be? I cannot find any differences between the settings of objects that do and don't have selection outlines.
I went around and around with this for a bit today and the solution for me was to click the button to the left of the 'Overlays' pulldown.  The tooltip reads "Display overlays like gizmos and outlines".  This did the trick.

Seems like a silly place to bury the toggle for that functionality, but what do I know.