I have removed the unnecessary ‘ext’ that was no longer needed. However, when exporting, these descriptions remain in the ‘end of the HTML document’, ‘css’, and ‘js’ files, and we cannot delete them. If anyone knows how to remove them, please let us know.
Have you checked all of your page attachments. If this is an older project moved through versions of Blocs, the links may remain even when the Bric is removed (This has been fixed in newer versions of Blocs but its not a fix that is back ported to older migrated projects).