If a user notices that the Max Overall Dimensions are not correct when creating a part inside of ICD, there are steps that you can use to remedy the problem. First off, These calculations are based on overall projected geometry's bounding box, meaning that it has the same limitations of any bounding box type computation. Because of this, the view quality will also have an effect on the accuracy of the measurement. Using Precise View Quality instead of Quick will be more precise and might remedy the issue.

One more thing to note when seeing the incorrect dimension is that the front view definition might not be set correctly, so ensuring that is correctly oriented is a great first step.