Hi. I hope you’re doing well.
Our plugins do add some ld+json Event schema data, but our plugins do not add any open graph data.
Facebook continually changes how they “digest” sites. You could choose to test any of your links in Facebook’s debug/linter tool if you’d like to test how they view your single-event pages, but we wouldn’t provide support for that.
If it really was one of our plugin updates that changed the way Facebook digested your single-event links, it wasn’t deliberate.
Sorry this probably isn’t what you were wanting to hear; maybe you thought our plugins supported sharing via Facebook.
I hope to hear back from you with some follow-up information if you choose to look into this further.
Thanks!