Weapon enhancements TOTALY BUGGED

Hi I've noticed that Shaman weapon Enhancements ( Windfury, Flametounge and Rockbiter) are all massivley bugged for the better or worse. Rockbiter Rank 5 should give 253 attack power, but provides 420. When you get Rockbiter Rank 6 its 470 and seems to work. (Rank 5 gives more AP then it should!)
Flametongue Weapon Rank 4 should deal 15 to 45 fire dmg depending on Weapon Speed, but it deals up to 60. When i use Flametonge Weapon Rank 5 it should deal 24 to 75 depending on Weapon Speed, but it only does 65 with a 3.4 weapon, and does not exceed the Maximum damage of 75, even thought it could exceed the Rank 4 dmg of 45 by 15.
Windfury Weapon should give an extra 166 melee attack power, but as I noticed it doesnt seem to give any extra AP on the Procs, -> Windfury gives you Two extra Attacks but they don't get additional attack power and deal the same dmg as Auto Hits.
Regarding the Weapon enhancements lile Flametounge / Rockbiter working totlay random depending on Rank I havent future tested any other Ranks just noticed this at lvl 46 so some more Ranks from 1-60 could be bugged not in the mood to test them all thought..
Flametongue Weapon Rank 4 should deal 15 to 45 fire dmg depending on Weapon Speed, but it deals up to 60. When i use Flametonge Weapon Rank 5 it should deal 24 to 75 depending on Weapon Speed, but it only does 65 with a 3.4 weapon, and does not exceed the Maximum damage of 75, even thought it could exceed the Rank 4 dmg of 45 by 15.
Windfury Weapon should give an extra 166 melee attack power, but as I noticed it doesnt seem to give any extra AP on the Procs, -> Windfury gives you Two extra Attacks but they don't get additional attack power and deal the same dmg as Auto Hits.
Regarding the Weapon enhancements lile Flametounge / Rockbiter working totlay random depending on Rank I havent future tested any other Ranks just noticed this at lvl 46 so some more Ranks from 1-60 could be bugged not in the mood to test them all thought..