Okay, so previously I had a "soul trap" enchantment on my elven bow. Upon reloading my saved game after installing the patch (1.9) I find the enchantment LOOKS like it is still on the bow - however, when you equip the bow, it no longer glows, and no longer traps souls - despite being fully charged.
I thought it might be a bug with the new patch and my previously saved game. So I re-made another new bow. Same soul trap enchantment. Worked fine. Saved the game when I had finished playing. Re-loaded it the day after... same thing. Now two bows LOOK enchanted, but neither glow when equipped, and neither bow works as though enchanted.
Enough to say, I now have 5 enchanted bows - none of which work upon reloading the game. What's happening here? It would a ridiculous expectation for me to have to remake, and enchant, a bow each time I load up my saved games...