The WordPress error message “Updating failed. Could not update post in the database” appears when the system is unable to save changes to a post or page. This error typically involves a breakdown in communication between WordPress and its underlying database, preventing updates from being committed.
However, if this problem affects only certain posts or pages, the content can offer a useful diagnostic clue.
How to fix WordPress error “Updating failed. Could not update post in the database”
Unicode and emoji are valid text. An older or inconsistent database encoding can reject characters it cannot store, but this is not proof that emoji are inherently invalid. Save a copy of the draft before troubleshooting, and ask the host or developer to inspect the exact error and encoding before changing database settings.
In my example, removing two emoji allowed the post to save. That is a useful diagnostic observation, not evidence that pasted ChatGPT text or all Unicode is incompatible with WordPress. Other database or application errors can produce the same message.
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