Open Browse Catalog. Type in a search word. The results show you what catalog contains the clip(s) with that particular search word.
IF- the search word finds the clip where the word was part of an Event Marker descriptor or a descriptor used in the Notes area under the Log Notes tab, double-clicking on the catalog will open a blank catalog.
IF- the search word finds the clip where the word is part of a User Setting (custom or otherwise) descriptor, double-clicking on the catalog will open the catalog correctly.
Is this the correct behavior? Is there a setting that needs to be changed?
That doesn't sound right. Please email a screenshot of the Browse Catalogs window after doing the search and a copy of your CatDV Error Log (which you can access via Help > System Information) to firstname.lastname@example.org so we can investigate.