Title: JSON error with block editor
Last modified: July 6, 2022

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# JSON error with block editor

 *  [puffin](https://wordpress.org/support/users/puffin/)
 * (@puffin)
 * [3 years, 11 months ago](https://wordpress.org/support/topic/json-error-with-block-editor/)
 * My host tells me the problem is wordpress and block editor. When I try to update
   a post, i get ‘not a valid JSON response’ error.
    Switching to classic editor
   seems to temporarily resolve it, but this isn’t a viable solution long term. 
   I see posts about this from other people but no solution yet. Please can WP look
   into what the incompatibility could be?

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

 *  [mdshak](https://wordpress.org/support/users/mdshak/)
 * (@mdshak)
 * [3 years, 11 months ago](https://wordpress.org/support/topic/json-error-with-block-editor/#post-15801892)
 * I would like to suggest to contact to Theme Developer about this issue because
   this is matter of debugging. We can not request to share admin access here.
 *  Thread Starter [puffin](https://wordpress.org/support/users/puffin/)
 * (@puffin)
 * [3 years, 11 months ago](https://wordpress.org/support/topic/json-error-with-block-editor/#post-15801984)
 * Im just using twenty twenty one, isn’t that WP themselves?
 *  [lisa](https://wordpress.org/support/users/contentiskey/)
 * (@contentiskey)
 * [3 years, 11 months ago](https://wordpress.org/support/topic/json-error-with-block-editor/#post-15802045)
 * For theme specific support with twentytwentyone theme, use this link:
    [https://wordpress.org/support/theme/twentytwentyone/](https://wordpress.org/support/theme/twentytwentyone/)

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

The topic ‘JSON error with block editor’ is closed to new replies.

## Tags

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 3 replies
 * 3 participants
 * Last reply from: [lisa](https://wordpress.org/support/users/contentiskey/)
 * Last activity: [3 years, 11 months ago](https://wordpress.org/support/topic/json-error-with-block-editor/#post-15802045)
 * Status: not resolved

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