Bug: Light value changes not immediately reflected

I have multiple lights in a scene. Changing the settings for these lights, especially far attenuation on and off, is not always immediately reflected. I have to stop the oFusion viewport and restart it to show the change.

Have you tested by selecting the light and using the "Update Sel" button in the oFusion toolbar or via the oFusion/Update Sel menu entry?

No, I didn't try that.