Problem with Dissipation rate storage in UDMI

Sam

Hello, I will try to explain the problem that I have when I store the value of Turbulent Dissipation Rate (Epsilon) into an UDMI. I need to calculate a drag coefficient with epsilon but i wanted to check if the variable C_D(c,t) is well considered in my function. So Compiling is ok, but when I watch the contours of "Epsilon" and the "UDMI" corresponding to epsilon, the values are different if "node values" is checked, the non-"node values" are however the same (which is good).

But I want to know why in this case the "node values" are different. This only happens with "Epsilon". Storing "k", for instance, in an UDMI gives the same value as the "k" calculating from Fluent.

Thanks Regards, Sam