Data is missing in ATC Experience View when the alerts are just on one node.
Article ID: 15685
CA Application Performance Management Agent (APM / Wily / Introscope)
Why are problems or stories missing in the ATC Experience View when the alerts are just for one node?
APM 10.5Any OS
Alerts happening on ONE Node do not populate to stories/problems. This is by design. A future release may have this support.