Setting progress in Render call


I am no longer seeing the Production Render window progress percentage status message changing as the render progresses. Did we break something on our side, or is there a known problem?

I am referring to the status messages caused by our calls to:

RenderWindow.SetProgress(“Rendering…”, (float)(Native.Render.GetPass(-1)) / (float)(RenderOptions.Instance.MaxIterations));

AFAICS this should still work as before. I just installed latest WIP and tried rendering with Cycles for Rhino. The status bar gets updated as expected.