Pattern Search for Command gives The editor has encountered an unexpected error.

[kapasias]

File : wp-includes/js/dist/blocks.min.js

First Create Pattern and Then Follow

Steps : ​https://www.loom.com/share/a4a1eb3c262546829dcb80224c39b048

[kapasias]

Updated File : ​https://we.tl/t-LhGUkzXh0D

[wildworks]

Thanks for the report.

I was able to reproduce this issue in WP6.5, but it appears to have been fixed in the latest Gutenberg.

Testing Instructions

1. Create a simple synced pattern in advance.
2. Open the post editor.
3. Insert the synced pattern you created earlier.
4. Click the "Edit Original" button from the block toolbar.
5. Move to pattern editing mode.
6. Click the Document Title to launch the Command Palette.
7. Enter some characters.
8. Editor crashes.
9. Enable Gutenberg plugin version 18.1.0.
10. Repeat steps 2 to 7.
11. The editor should not crash.

[poena]

@wildworks Do you know if the fix in Gutenberg is labeled to be included in the next minor release?

[wildworks]

Do you know if the fix in Gutenberg is labeled to be included in the next minor release?

In the issue reported in this ticket, the browser outputs the following error:

Uncaught TypeError: Cannot read properties of null (reading 'name')
    at isPossibleTransformForSource (blocks.js?ver=1cdc1594170000ce87b5:10138:36)

I found a Gutenberg PR (​#59289) that fixes a similar error. This PR may also have fixed the issue reported in this ticket.