ArcGIS Hub gallery content by tag name

[OliverIshmael]

I have created a Hub site and added a row with a Gallery. In the sidebar settings I am trying to make the gallery only display content that has a specific Tag.

"Dashboard Demo" does not display any results and neither does "Dashboard_Demo" or "dashboarddemo"

The gallery only seems to work if I choose a specific content type, so why does it give the option of using tags?

[Alex-Santos]

Are the items you want displayed also shared to the hub site's content group? Or, shared within a group that is shared in the hub site's group manager? Using "dashboarddemo," without a space, is a good idea. I do the same when I want specific items to show.

[OliverIshmael]

Yes the content is shared with the Hub sites content group. Glad to hear you're using it in the same way, so there must be a reason why it's not working for us

[tmichael_wpjwa]

Same issue here, almost three years later.  I have a number of items tagged as "Service Department" with the idea that they would only show on a department-specific hub page:

However the gallery configuration doesn't seem to think this tag exists in my org:

** edited to add - I tried what was recommended above and it looks like a tag that is one phrase and all lowercase (servicedepartment) does work.