Why do tagged folders do not appear in open/save dialogs? On my Mac, I use tags for both files and folders.

In the Finder, when clicking on the « tag view » in the sidebar, I see every file and folder which holds that tag, as expected.

However, for some reason, in Open and Save prompts, when I go in the same « tag view », folders are not shown, only files are.

I was wondering if it is a specific issue with my setup, or if it is a general bug in macOS ?

PS : I already have rebuilt Spotlight index.

On the screenshot below, top window is a generic Finder window. Bottom window is TextEdit open dialog. The latter do not show folders in Tag view.



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Edit : After some additional trials, it seems it finally occurs only in Open dialogs, and in some apps only.

For instance, in Preview’s open dialog, the issue does not occur.
However, in Textedit, Pages, Numbers, the issue occurs in Open dialogs.
If you go into finder>preferences>tags you will see that two tags have very similar colours, in my case, "work" and "orange". Try changing the colour of your "Projet" tag and see if they both the files change. If they don't then you might not have tagged your files correctly. 

It seems like a silly answer but this has happened to me before that's why I am proposing this.