Unable to checkout the knowledge articles.Issue Knowledge articles creating duplicates when checking out articles for editing the content. Steps to reproduce: Open any published knowledge articleClick on checkout User Interface (UI) actionIt creates new version but not allow user to edit the contentCauseThe custom workflow attached to the article is causing the issue. Once the record is inserted, all articles with the one custom field set to false will be moved to the published state, according to the custom workflow. As a result, for those articles with the custom field set to false, experiencing an issue where the articles are checked out in the published state and thus unable to edit the new version.ResolutionChange the custom field in the article to true so that the newly inserted articles will not set the state to published.Another way is to change the custom workflow and add the Out of the box workflow.Related LinksCheck if the User Interface (UI) action 'checkout' is customizedCheck if the 'KBVersioning' script include is customized Knowledge Article - Missing Checkout/Edit Button'Checkout' button missing from published Knowledge Article