Dual Wield & Gut Shot

No need to make this post public. Thanks. For some reason my gut shots are doing damage type based on my offhand weapon. A weapon that's not even a dagger. It's a sword. These are my current weapons that I use: a dagger named 'Icepick' (Glowing) the fiery mithril sabre named 'Phoenix Edge' As you can see my dagger is in my mainhand and I have a flame sword in my off hand. Yet when I gut shot I get fire damage type. Last time I checked, Icepick didn't do fire damage. Case in point: <652/745hp 678m 765mv> You suddenly step in front of a massive adamantine construct, imbedding a dagger into his belly! Your gut shot RAZES a massive adamantine construct! <733/765hp 678m 616mv> You suddenly step in front of the bronze dragon, imbedding a dagger into his belly! Your gut shot RAZES the bronze dragon! <616/765hp 678m 765mv> You suddenly step in front of a huge spider, imbedding a dagger into his belly! Your gut shot TORCHES a huge spider! I'm thinking this is a bug?