Title: Cannot read properties wp_pattern_sync_status
Last modified: March 11, 2025

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# Cannot read properties wp_pattern_sync_status

 *  [charlie67p](https://wordpress.org/support/users/charlie67p/)
 * (@charlie67p)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/cannot-read-properties-wp_pattern_sync_status/)
 * Hi,
   I get this error when I try to create a Sync Pattern.This only occurs when
   using the block core/spacer ! With other blocks like Paragraph or Image, it works
   fine.Cannot read properties of undefined (reading ‘wp_pattern_sync_status’)And
   in the console I get this :Failed to load resource: the server responded with
   a status of 403 ()/wp-json/wp/v2/blocks?_locale=user:1Thank you very much for
   helping me![ i deactivated all plugins + tried with other themes + refreshed 
   the htaccess, but still get the error ]
    -  This topic was modified 1 year, 2 months ago by [charlie67p](https://wordpress.org/support/users/charlie67p/).

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Thread Starter [charlie67p](https://wordpress.org/support/users/charlie67p/)
 * (@charlie67p)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/cannot-read-properties-wp_pattern_sync_status/#post-18356194)
 * UPDATE 01
   I tried to Add pattern via Import Json (I could export Pattern as Json
   from another website)Error again (and only with pattern including wp spacer !)
 * Now I get this message :
   Cannot read properties of undefined (reading ‘title’)
   I also tried by creating new website with a fresh new WP install + on a new subdomain
   + with new database. And I get the error again, and only when using core/spacer!
   This makes me crazyUPDATE 02I just realized that I’m having exactly the same 
   issue when using a core Group block inside a Sync Pattern …
    -  This reply was modified 1 year, 2 months ago by [charlie67p](https://wordpress.org/support/users/charlie67p/).
 *  Thread Starter [charlie67p](https://wordpress.org/support/users/charlie67p/)
 * (@charlie67p)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/cannot-read-properties-wp_pattern_sync_status/#post-18357802)
 * OK, I deactivated Lighspeedcache, and miracle : seems to work now… I still need
   some tests to be sure it was the only problem, and to mark my Topic as resolved…
   coming back soon
 *  Moderator [bcworkz](https://wordpress.org/support/users/bcworkz/)
 * (@bcworkz)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/cannot-read-properties-wp_pattern_sync_status/#post-18357811)
 * Do you still get that console error (failed to load resource) when you get those
   WP cannot read errors?
 * If so the problem likely resides outside of WP and lies within your server configuration
   somewhere. If WP is denied access to its API resources it will fail to function
   properly. There are no file permissions to check since it’s an API request, but
   servers can still deny specific requests. For example, the modSecurity configuration
   may need modification (if it’s even in use).
 * Another possible cause is if WP is failing to receive your auth cookie that your
   browser should have sent. Either your browser failed to send it or some process(
   proxy or server) along the way dropped it.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Cannot read properties wp_pattern_sync_status’ is closed to new replies.

## Tags

 * [json](https://wordpress.org/support/topic-tag/json/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 3 replies
 * 2 participants
 * Last reply from: [bcworkz](https://wordpress.org/support/users/bcworkz/)
 * Last activity: [1 year, 2 months ago](https://wordpress.org/support/topic/cannot-read-properties-wp_pattern_sync_status/#post-18357811)
 * Status: not resolved

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