Photoshop allows undocumented combinations of operations. In your version fortunately some absurd combinations at least seem to be grayed. You see one example just now. It's like you are trying to insert layer style Satin to a Channel Mixer adjustment layer, but PS has hidden many parts of the dialog.
Use this dialog (=blending options and layer styles) only for layers which have image content - bitmap, shapes or text. Layer opacity (it's one of the blending options) is meaningful also for adjustment layers, but you can adjust it in the layers panel for adjustment layers. It affects the depth of the adjustment.
I bet Adobe's engineers haven't figured out what Satin should mean for adjustment layers, but that doesn't prevent older than CS6 legacy Photoshops to show all dialog texts and parameters and create unpredictable results, when one does some adjustments.