Cpu usage stuck at 100 after CVX finished

I have CVX/Gurobi installed. In some simulations, the cpu usage remains at 100 even after the simulation is finished.
Can you please help me with this?
Thanks a lot,

Can you provide some more detail? Have you confirmed that it’s MATLAB that is consuming all of the CPU time? Did Gurobi provide the correct answer, even though it is still at 100%?