Reference Type names missing in Edit Template window (EN21)

When editing a style (any style) in Endnote 21, I can no longer see the Reference Type name (e.g., Journal article, Book) in the Edit Template window for the style. It applies to all styles.

I’m using Endnote 21 on MacBook Pro 16” (2021), fully updated.

Clarivate Customer Support informed me last October that it is a known problem. But nothing has happened.