Fortigate not displaying the IDS/one-arm mode traffic on Log&Report->sniffer Traffic

I have a Fortigate 800C in Flow based inspection and configured one-arm sniffer mode on an interface and configured a firewall sniffer with below config

config firewall sniffer

set ips-sensore-status enable

set ips-sensor sniffer-profile

set logtraffic all

set interface port9

set status enable

But, i am not able to see the packet info/data on Log&Report->sniffer Traffic Page on Fortigate UI. Can anyone check/let me know is there any config/setting required on fortigate for it to work in sniffer mode for IDS...?