I am going to ditto Jgomezch:
People stop saying it's happening to me, you're just clogging up the thread.
Here's some additional information that can be useful for apple and other users.
I purchased 2 iPhone 6s Pluses.
My wife's, I restored from a previous iphone.
Mine I did a clean setup (ie. not from a restore).
I don't experience the issue but my wife experiences the blank screen with trying to launch an app. On her phone I'll close all open apps and do a hard reset (or just a power cycle). What's strange is when I restart the phone, all of the background applications are still open. I mentioned this to my wife and she said, "I thought that was strange, especially since I've never used Pandora on this phone". However, every time I restart or hard restart the phone, Pandora is open in the background.
I am willing to bet that with all of the restores that people have done, they didn't close out of all their apps, and these will also show up in the background if you do a hard reset or a power cycle.
I will be doing a clean install for my wife and I'll post back in a few days if this fixes the issue.