TMI from my (Iray) Surface pane

When looking at an Iray surface, it used to be that if I had something like "Top Coat Weight" set to 0%, then the other settings for the Top Coat didn't show up. But now I see them all, all the time. It makes finding the settings I'm actually using a lot harder. I've tried toggling "show hidden properties" on and off again, but it doesn't help. I've resisted a full UI reset because I don't remember all the little customizations I might have done and redoing those could be a pain.
Has anyone seen this and has a fix other than doing the reset?
Comments
They should be hidden if you are using Iray Uber Base and have Show Hidden properties off. However, if you take the sahder into Shader Mixer to customise it the auto-hide feature will, I think, be lost (that was certainly the case in the past).
That's what I thought too, Richard. And I haven't tried to modify the Uber Base at all. Even stranger, last night I was playing trying to fix it and found if I checked "Show Hidden Properties", it returns to the default of hiding parameters when the the weight is zero. But if I UNcheck it, then it shows me all the hidden properties. Very strange. It's not stopping me from working with Studio, just odd. Eventually I'll bite the bullet and reset everything to defaults and see what effect that has.