Aria Operations for Logs 8.18.x
The syslog configuration for Aria Logs is not done on all NSX nodes.
On the NSX UI, ensure that the syslog configuration is done to match steps in Configure All NSX Nodes to Forward Logs to VMware Aria Operations for Logs.
For CLI, ensure that the syslog configuration is done for each node individually as described in Configure Remote Logging in NSX.