UPDATE: 08/03/2020 8:45pm EDT
Our engineering team has identified the issue and rolled out a hotfix to resolve it. At this time we are no longer seeing errors occurring with the related profiles display.
We apologize for the interruption today with this issue and appreciate your patience as it was resolved. If you are still experiencing any problems with this feature, please submit a request to our support team for immediate assistance.
After Release 20.20 we have identified an issue causing some Atlas users to encounter an error when viewing related profiles in the desktop version of Atlas. Our engineering team has identified a cause and is working to address the issue quickly. Updates to the status of this issue will be posted on this article.
In the meantime, you can access and edit related profiles in the browser version of Atlas as described in the following resource articles: