It shows Overlay Mixer Renderer.
I Know it's wrong, but as far as I remembered, I didn't change it...
Switched it to Enhanced Video Render (custom presenter)for it has most options available,
and now it works fine. Thanks for your precise diagnosis!
P.S: Which one is default? Which one would you suggest?
2. Not sure which list you're asking, the following imgur link is the PrintScrns
http://imgur.com/a/dbwi5