CoreStorage changed to Apple_HFS after resizing and Recovery HD popped in the middle of my disk
I think I fixed it.


First of all, you need to revert Macintosh HD into a CoreStorage using
diskutil cs convert /dev/disk0s2
Then, reinstall MacOs on Macintosh HD using the Sierra installer for the Mac Apple Store without loosing data, creating a new Recovery HD partition. 
Lastly, erase the old Recovery HD partition labeled Apple_HFS with Disk Utility.