Hello, I am using all the latest/most updated versions of the plugin, wordpress, theme, etc, and I am positive that no paragraphs are longer than 300 words. I am using the Gutengerg block editor, and once I added a new block, the 300 word notice came up and wouldn’t go away. There also doesn’t appear to be any errors in the javascript console.
That’s good to know that the search engine can still detect correct info, though!