Hello,
I am not sure if this is a problem.
1. article title is put into <title> element in head of the document, not in the <meta name="title"> -- that is something I have not seen before and it is not used (of course nothing prevents you to use it, but I do not think robots will check it)
2. as regards adding / not adding global metas behind article metas, this can be configured in JoomSEF metabot (plugin) -> there you can set this; you will find in among Joomla system plugins
If you are using JoomFish, make sure JfRouter is OFF, as it can conflict with JoomSEF Metabot otherwise.