Custom Object Grips and MoveUVN

I have custom surface grips that work as expected when dragging them interactively, but they don’t respond to most actions in the MoveUVN command; when I click the <> arrows or drag the slider I don’t seem to get any response in the custom grips; normally when I interactively drag the grips the OnDraw override allows me to handle to get the desired behavior; is there another virtual method or event I should be looking for to get MoveUVN behavior in custom grips? Thanks, Larry

you re on RhinoCommon ?
you inherit from CustomObjectGrips Class ?

did you have a look at this example ?
does it work with moveUVN ?

there are a few older topics about custom objects / custom grips - as fare is I remember not everything was solved.
(AT) Dale is the right person to ask, but maybe provide some minimal code ?