Facet not appearing on view

Not sure why you are not seeing the filter.

Can you try adding a regular filter (not facets), and expose it.
Does that one shows up?

In case you missed this, here is the documentation: https://project.pages.drupalcode.org/facets/exposed_filters/

It's turned up now - not sure what I did that fixed it, but I did disable and re-enable facets and facets exposed filters modules

Automatically closed - issue fixed for 2 weeks with no activity.