[Plugin: Really simple Facebook Twitter share buttons] Facebook Like button not appearing on one spe

I’ve been using this plugin successfully for a while and just encounter the strangest problem.

The most recent post in my client’s blog does not show the Facebook Like button. All other posts show it fine. This current post does not show the button when viewed in the full blog stream, or on its own.

Other buttons (twitter, google+) show up fine. The blank space for the facebook button is there, just no button. I’ve checked the html source and the code for the button just isn’t there – I can’t see any html tag mismatch or anything like that that would stop the facebook code from appearing, it just isn’t there at all.

I’ve also been over the post itself, there’s no weird characters or tags in the post title or text that would interfere with the tags created by the plugin.

Any thoughts on this one?

Here’s the site:
https://editedinteriors.ca

Here’s the main blog feed – the post in question is the top one:
https://editedinteriors.ca/blog/

Here’s the blog post in question viewed on its own:
https://editedinteriors.ca/2012/09/open-changes/

https://www.ads-software.com/extend/plugins/really-simple-facebook-twitter-share-buttons/