I checked this on my site. It seems the titles are showing as < title > This is a title | < /title >
Its not adding my blog name at the end but is adding "|" this separator. Seems stupid.
The worst part is, i tried uninstalling this plugin and installing Yoast glue twice. But once you have this plugin, it seems you cannot install Yoast glue. I might take some time out and write to yoast about this. Because i am fed of the errors in this plugin. I paid $19 upfront for the AMP ads extension. Thats how they should earn. But being programmers, they should learn from the plugins of yoast which is a public plugin. And implement code accordingly. I have no problems with them charging for the product. But the product should be good.