Negative Mass Moment of Inertia

[Anonymous]

Hi, 

I have a box-shaped oject with arbitrarily assigned mass value in Invetor, and the mass moments of inertia about the Center of Gravity calculated in Invetor turn out to be negative. 

Based on general forumla I = mr^2 this should always be a positive term. I did notice the *note right below the numbers where it says "*values do not reflect user-overridden mass or volume", but wouldn't the moments of Inertia sitll be positive based on the formula? Does anyone have an idea why they are negative? I appreciate your help. 

Thanks,

Ryan