It is kind of difficult to explain.
Origin does not appear since I have it running at the background and not as a window.
So, when I start the game with origin for the first time, I log in to origin, origin runs at the background. After I finish the game I return to bigbox and I can navigate just fine.
If I start again the game since I am already logged in in origin, game starts automatically but after i exit the game and return back to bigbox, now I need alt+tab so that I can navigate. It is like origin is focused but without its window to be visible.
This is happening for all the games that run with origin. I do not have this problem with other launchers.