Troubleshooting a WordPress Database Error: “Updating failed. Could not insert post into the database.”

Today, I encountered an issue while trying to update a recent blog post with additional links I added to my bookmark list. Every time I attempted to save my changes, I received the following error:

Updating failed. Could not insert post into the database.

The update I was trying to make involved adding a few new links from my bookmark list, but despite several attempts, the error persisted.

Steps Taken to Resolve the Issue

First, I tried investigating the database that powers my WordPress site for any potential issues. I explored several options, but the error remained unresolved.

The Unexpected Workaround

After troubleshooting for a while, I discovered that the issue seemed to be linked to the use of unicode characters. More specifically, when I included Unicode characters in my post (such as emoji or special symbols), the update would fail.

The workaround that finally worked for me was simple: avoiding Unicode characters in my post.

Even using HTML entities for Unicode characters (e.g., 🚀 for a rocket emoji) did not resolve the issue. It appears that something about Unicode characters, whether directly input or encoded as HTML entities, was causing the update process to fail.

Pictures are the only workaround that worked for me.

Conclusion

If you encounter this error when trying to update your WordPress blog, and especially if you’re using special characters or emojis, consider temporarily removing them from your post. For now, this is the workaround that resolved my issue.

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