Highlight and Lowlight

Is anyone else having trouble with getting customised Highlight and Lowlight to work?

I have made a palette which has all my fixtures at 100% and Open White only. I have set this palette to be Highlight. If I select a fixture and press this palette it works....if I press the Highlight key it still behaves in the default manor and removes my gobos etc.

My lowlight palette is having no effect when pressing the highlight key.

Have I missed a new setting to enable this somewhere, or is this a bug?

Cheers

Colin