getting wrong values in threat group and threat category in threat activity details in splunk enterprise security

Hi Splunkers, I am seeing some junk values in Threat activity details report from Splunk enterprise security, FYI please have a look at the below values threat_collection threat_group threat_category "ip_intel ip_intel" undefined undefined "ip_intel ip_intel" undefined undefined ip_intel DSW_Attacker_DB threatlist "ip_intel ip_intel" undefined undefined ip_intel DSW_Attacker_DB threatlist "ip_intel ip_intel" undefined undefined "ip_intel ip_intel" undefined undefined "ip_intel ip_intel" undefined undefined "ip_intel ip_intel" undefined undefined "ip_intel ip_intel" undefined undefined please help me, I would like to know the reason why I am seeing undefined values. Thanks in advance.