Greetings yegnal - yes, the volumes are off. BeerSmith calculates the water volumes based on the weight of grains used in the recipe. It does this in the Mash Profile. Now, if you added a 10 pound grain basis in the mash profile After the Mash profile was brought into the recipe, than you override the volumes BS needed for proper calculations.
You should always adjust all of your Profiles Before the profile is brought into the recipe. Any adjustments made to any of the Profiles after the profile if brought into the recipe only affects that batch/recipe. So, go back into the recipe, than into the mash profile and make sure the Grain Basis is 6 pounds 3 oz. I believe that will correct your problem. Alternatively, you can simply re-select the mash profile again from the list of profiles. This will reintroduce the Mash profile and it should produce the correct calculations. If not, perhaps you would consider upload8ng your recipe so we can have a look?
Hope this helps!