I added a new property to an event in my application and now all instances of it appear like this on the user timeline. Removing the new property does not solve the problem. It still shows up correctly in the developer preview rendered event. All the data I am sending to the application still sends properly, the formatting is just not happening.
Thanks for the heads up, this is a known issue on our end and the team is currently working on a fix. We’ll post again here when this is fully resolved.