It looks like there might be something interfering with WordPress'
apply_content_filter() : calling apply_filters()
apply_content_filter() : content strlen() before = 2849, after = 0
I would suggest disabling other plugins until the title and descriptions start working. You can do a "View Source" to check the OG meta headers:
<meta property="og:description" content="" />
<meta property="og:title" content="" />
Let me know which plugin is causing the problem, and if I can, I'll install it myself and try to figure out why it's breaking the