RCPier Cap design - shear and torsion

The attached file shows the output from the cap design module of RCPier v14. Can you tell me why there is a point where phi*Vn=504 and Vu=72.5 yet phi*Vn < Vu? Is this result spurious or is there a reason for this?

 

Also, how can I tell what the most recent version of Leap Bridge software is?

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