My company recently upgraded to Suite 10, Update #2 and also upgraded to GIS 10.1.

My model worked well before, but now I am getting an "infeasible run error" even though I haven't changed anything. It appears as though the problem is with the Variable Speed Pumps as I have isolated a section without any VSPs and they still work. In addition, there is a "VSP Run failed" message.

Are there additional requirements for VSPs in the latest version that would cause it to fail if I don't change them?

Thank You, D