JSON Encoding Mismatches

WordPress blocks rely on strict JSON formatting inside HTML comments. If you accidentally use a "curly quote" (smart quote) instead of a straight quote inside the comment attributes, the block will break. Always copy-paste from a code editor, not a rich text processor.

If your content contains backslashes (e.g., in inline CSS or URLs), WordPress might strip them during wp_insert_post depending on the context. You may need to use wp_slash() on your content string before passing it to the insert function to ensure data integrity.

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