Upfront CODE content elements uneditable

On the site there is a social media page (http://myfitcodeapp.fitness/social-media-services/) where I am trying to add/edit a Code element in Upfront. I updated Upfront earlier today and the Code element seems to be broken in this release. I can neither add my own code nor paste embed codes from third parties. Seems like the Code content element is just plain broken in the new release of Upfront. I am trying to edit the existing embedded timeline or simply delete it and add a new CODE element to contain the edited embed code. The timeline is embedded from https://timeline.knightlab.com and is just a URL in an iframe.