By selecting the Turbulence Control option you cause the zero equation turbulence model to be used from the first iteration through to the Transition Iteration for eddy-viscosity-based turbulence models. The idea is to solve a simpler and more robust turbulence model for the first few iterations, so try a Transition Iteration value of 5.

You should use the Turbulence Control option when startup with the desired turbulence model is not possible.