Resolving DRC Errors for Blind Vias on BGA Pads in Allegro

[jayasreejayaraj]

I used a 0.25mm pad size blind via on a BGA pad with a 0.25mm size. I set a 0.1mm B/B stagger clearance in the physical constraints, but I am still getting a DRC error: "Minimum blind/buried via stagger distance top constraint value: 0.1mm, actual value: 0mm." How can I solve this error in Allegro?