In reply to Chris Aldrich.

Interestingly I disabled the microformats2 plug because it seemed to be doing more harm than good. At the moment I can't remember what the issues were. I have re-enabled the plugin and will monitor to see if the issue was related to that.

Pingbacks have always been enabled on my website. For some reason they no longer work. The one example I posted in my comment was for a webiste that I have interacted with for over a year. Pingbacks used to work but now do not. I am sure the problem is on my end but I don't know how to trouble shoot this. The apache error logs don't seem to be useless for this. When I have some time I'll try to drop in on the IndieWeb chat for some help.

I have my website setup to collect webmentions. I see the Webmentions in the WordPress comments admin UI (there are 155 from Twitter) but ... they do no display on the page: https://islandinthenet.com/webmentions/

Basically ... nothing works and I don't know why.