On the main gift grid, you will only see a row for the constituent that was the main donor for the gift. You will not see a row for any constituent that received soft credit. However, when you open the constituent who received soft credit and go to their gift grid, you will see the gift. You just need to make sure you have the "include Soft Credits" checkmarked to see these gifts. There will be a column called “Soft Credit” that identifies any gifts that the constituent received soft credit for.