Batch Renaming not working in UI3

Here’s an example of something I used to do that worked, but doesn’t seem to be supported anymore:

Topic / Format / ProjectDetailedName_Topic_Format

I have to use this general format for the client I’m handing off some social media posts to and usually when moving through the topics, it’s been easy to batch rename, but now the search seems to stop after it’s found one instance of a term in the title rather than changing all matches. Generally, if I want to only rename one of these, I can narrow it down by including “ Format” or “_Format” etc, so I’m just a little confused with the change.

Is this intended or a bug?