Splunk for F5 Networks LTM v11 iRule

I'm having the exact same issue as nitass trying to get this setup on LTM v11 via the Splunk for F5 Networks included iRule. I see the health checks hitting Splunk (default send string) but nothing else, meaning it's not firewall related. I see usage on the iRule, but no usage on the syslog_pool. Anyone got any suggestions on troubleshooting this?

 

 

 

Thanks in advance,

 

-Jeff