I logged on real quick and see I dont have the Grok Debugger in my Kibana. I'm still on 6.2.4. I think it was introduced with 6.8?
I tried again using the online debugger I provided in my previous post, and its all good. I just replaced the masked IPs with something that looks like a real IP address like the below:
2019-09-13 13:54:38 111.111.111.26 GET / - 80 - 111.111.111.71 Mozilla/5.0+(compatible;+CloudFlare-AlwaysOnline/1.0;++http://www.cloudflare.com/always-online)+AppleWebKit/534.34 - 200 0 0 265 111.111.111.134 111.111.111.134