Hmm looks like I have an issue with soul trapping.
Every time I try to soul trap an opponent I can "only trap one" after that the spell stops working, this is same for weapon enchantment or soul trap spell, To clarify it looks like this: I get into a fight,I cast soul trap at an opponent, he starts glowing, I kill him,animation plays and I get a soul gem filled. Next opponent, I cast soul trap, enemy starts glowing, I kill him and nothing happens...It matters not if I use soul trap spell or weapon enchantment.
Any ides what's causing this? I followed the install guide to the letter and everything else works great.
Also I should mention that it only happens when I try to Soul trap the same type of creature in a row, so if I trap a giant, I can forget about trapping any more giants, but if I afterwards choose to trap a goat it works on the first goat and fails for all goats after the first one...