Beginning 17 February 2020, users of Chromium-based browsers may see some changes in behavior in K2 functionality.
This change will affect K2 Cloud and K2 on-premises users with Azure AD integration. It will affect K2 blackpearl and K2 Five users of K2 for SharePoint, and any other use of K2 within iframes in other sites.
K2 is working diligently to minimize the impact of this 3rd-party change. However, you may need to follow one of the available solutions in the attached KB article.