Larian Studios Forums Divinity - Original Sin Divinity - Original Sin - Enhanced Edition [PS4] Various questions about the Enhanced Edition

So I originally played the game when it came out on PC and remember that when you reached level 5 in "Sneak" that it lowered the amount of AP to 1 to use it in battle.

I have maxed out the skill on PS4 and it still takes 5AP to use it during battles.

Is this a bug, or was this something they changed in the Enhanced Edition?

Also - Does anyone else seem to be having issues finding sinew? I can't make bowstrings for my Ranger as I can't seem to find sinew anywhere in the world or on vendors?

Were the ability books taken out of the game that the Keeper of Secrets sold? All I ever find on here is treasure maps.