+6 and +8 Heavy Armor HP Bonus BUG!?

Is this a bug?
+6 Heavy Armor set and +8 Heavy armor set(Seraph Atk Type) have the same HP bonuses.. exactly the same. No increased HP from +8 set.

Is this a bug, was something changed? I gm'ed it but they didn't help.

Thanks

nobody answered last time.
nobody must know.

if you wish, you can lend it to me.
and i will check for you.

are you reading the hp bonus somewhere or are you just calculating?

Haha, na I'd rather not lend it out for a test :p.

I tested two of the same exact armor sets, except one is +6 set and other is +8... There's simply no HP bonuses after +6 enchantments it seems..
I cannot get any legit source or gm to respond though. It's lame lol.