Since December 2021 you noticed under ICDm> Incident tab no lower incidents records tied to with IPS detections while previously many IPS detection were showing under the same tab with more details of the IPS detection:
Symantec Endpoint Security Complete. ICDM
As per the screen shot above. those IPS detection supposed to be on the Incident tab how ever not, they can be found only under client activity or under investigate tab.
Reason:
an Incident can be only if we see that there many events that are tied to the same attack for example IPS+ malware detection+ EDR events and so on that are triggered all together by same Attacker, if this is the case an incident is raised where you can check all the incident history and details of the combination used by the attacker:
further details here:
https://techdocs.broadcom.com/us/en/symantec-security-software/endpoint-security-and-management/endpoint-security/sescloud/Endpoint-Detection-and-Response/About-Incidents/understanding-incidents-events-and-entities-v134644356-d38e88696.html
By Design of the product