Unable to Claim the Lifetime Capital Gains Exemption on Software

I sold QSBC shares (I am a tax lawyer, and am certain that the disposition qualifies); however, I cannot seem to claim the deduction using the turbotax software. I entered the capital gain, and then the software sets the maximum LCGE deduction at $0.00. I have never claimed the LCGE or an ABIL, and I have held these shares for over two years. The assets of the corporation also satisfy the small business corporation test. 

 

Any insight or thoughts would be greatly appreciated.