How are you doing procedures for Notable Events?
The description field doesn't support paragraph breaks.
I'd been using Next Steps as my space for procedures. With the upgrade to 7.3.0, my Next Steps all have
{"version":1,"data":"
appended at the start. If I try to update them, it appears Splunk upgrades the text to the new version and linebreaks are no longer supported and my procedures turn into giant blobs of text.