normal up on Normal Scroll After Fullpage.js doesn't autoScroll

### Description
Hello,
In this example there are two bugs.
The first one in the desktop version, when I'm in the natural scroll part, to go back to the Fullpage.js part, I have to scroll twice.
The second bug is that on mobile the fullpage.js doesn't work correctly.
I also wanted to know if it is possible to put a link to scroll from the Fullpage.js part to the natural scroll part.
I hope you can help me. Thanks for your help.
Best regards
Eriberto

### Link to isolated reproduction with no external CSS / JS
https://jsfiddle.net/q1m8rhLd/10/

### Steps to reproduce it
1. [First step]
2. [Second step]
3. [and so on...]

### Versions
Chrome, Osx