Problem with a search bar in Lightroom

Hello,
I've noticed a change in the search behavior in the latest version of Lightroom (not Classic). Previously, I was able to paste multiple photo filenames (e.g., IMG_1234 IMG_5678) into the search bar, and Lightroom would successfully find all of them. Now, when I do the same, it returns no results unless I search for each filename separately.

This has significantly slowed down my workflow.
Could you please let me know if this change was intentional? And is there a way to restore the previous functionality?

Thank you in advance!