When using the modal browser, the "Filter by block name" works as expected, but it fails to filter if you use the default off-canvas. This occurs because the links are not wrapped in an off-canvas link list, causing Drupal Core's filter mechanism to fail. Below is an example demonstrating this issue. Entering "rich" should filter the rich text block, but everything is hidden.
Wrap the links in an off-canvas link list, similar to Drupal Core. Also, remove the CSS list style for backward compatibility with the modal since links are not currently wrapped in an ul element. With this change, the filtered search works for both the off-canvas and modal displays.
Closed: duplicate
1.6
User interface
As I was creating a fork, I noticed that a fix has already been committed in #3259885 🐛 "Filter by block name" does not work in the tray/list of blocks is broken Fixed . Can a maintainer create a new release so that the fix gets in for new users of the module? I will mark as duplicate and close.