Non-negative optimization variables yield negative results

[Mark_L_Stone]

Same advice as last time.

This solutions cannot satisfy the constraint

Remove quiet. Then you will see the solver and CVX output, including whether CVX claims the problem was solved. Even if solved, constraints are only satisfied to within a feasibility tolerance. If any of the non-zero input data is very extreme in magnitude (large or small), that could exacerbate the amount by which a constraint appears to not be exactly feasible.