If you focused more on detailed description of your issue, instead of liking every single one of your own comment, this thread would be closed already:-)
You started thread that recent apps not working for you and it isn't actually in any way related to the recent apps... Nevermind.
So now it is that you can not get to the App info?
What exact steps are you making to get there?
You could just hold a finger on an app icon of your choice for a second or so and the little menu would pop up. The last option is App info.