report generation issue

Dear All,

 I am facing an issue when i generate a report of Top Traffic notification (Report type : Network Threat Protection ), No data is showing in this report as there are more than 2500 clients are connected with SEPM and all other reports are going fine.

Similarly when i am generating full report of NTP , all reports are correct except top traffic notification by group and subnet as no data is showing in it .

Network threat protection traffic logs are showing in Monitor.

i will be waiting for the solution , Thanks in advance :-)

Regards,

Irteza