[wp-trac] [WordPress Trac] #59553: In Beta 6.4-beta2, when trying to add a row or container, I get the error

[WordPress Trac]

#59553: In Beta 6.4-beta2, when trying to add a row or container, I get the error
--------------------------+------------------------------
 Reporter:  texasfixer    |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Editor        |     Version:  trunk
 Severity:  critical      |  Resolution:
 Keywords:                |     Focuses:
--------------------------+------------------------------

Comment (by hellofromTonya):

 == Reproduction Report

 === Environment
 - OS: macOS 13.2.1
 - Web Server: Nginx
 - PHP: 8.0.30
 - WordPress: 6.4 RC2
 - Browser: Firefox 115.0.2
 - Theme: Twenty Twenty-Four (TT4)
 - Active Plugins:
   - WordPress Beta Tester 3.5.5

 === Testing Steps

 1. Activated TT3 theme.
 2. Navigated to Posts > Add New Post.
 3. Added a row block.
 4. Added a header, paragraph, and image into the row block.
 5. Published.
 6. Viewed in the frontend.
 7. Repeated with TT4 theme.

 === Actual Results
 - ❌ Unable to reproduce the reported issue.

 === Additional Notes

 Adding a row works as expected.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/59553#comment:4>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform