I found the solution to this problem. I used smoothing with Spring Constant Factor of 0.0001, Convergence Tolerance of 0.001 and 100 number of iterations. I also used the Remeshing method with local cell and local face. The problem was that I wanted the mesh (the hump area) to jump directly to an elevation of 60 cm from 30 cm. I now made the mesh (the hump) to gradually change from 30 cm to 42 cm, which worked well.
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