Initiative broken on monster manual monsters.

Just noticed the little new initiative button on monsters from the monster manual.  Thats cool! Only problem is it doesnt work.  It's not adding the dex mod to initiative.  Nor is it adding it when you click the creature name like it used to. 
I just checked this myself. Seems to be the case when Dex mod is a negative number, I'm getting it when the Dex mod is higher than 0.
Initiative is not the only thing broken. Death saves, Initiative, Saves, Skills and Spells to name a few are all broken!