Solved but variables do not satisfy all constraints

I use Sedumi to solve a standard convex problem.
The status is SOLVED but variables do not satisfy all constraints.
What does that mean?

How big are the constraint violations? Solvers allow some tolerance for small constraint violations. If the violations are not small, please provide a complete reproducible program, with CVX/solver output and cvx_version information. Also try another solver, such as SDPT3.