Maybe I am missing something here, but the way stacking presets works in Lightroom CC is quite confusing (at least for me).
I have a large number of presets, some which are "all-in-one" however the majority that I use are stacking and will control certain aspects of the photograph (Base, Color, Exposure, etc etc). In Lightroom CC stacking presets does work - i can select a base preset for a good start, then use specific presets for colour correction, exposure, polish, tone etc. to get the result that i am looking for. And i can also tweak the sliders further if I wish.
However, as there is no history available to what i did to the photo, I have no idea which presets have been applied. Only the 'last' preset that was chosen is highlighted in the Preset Bar (even though I have used 4 different stackable presets).
So I am either missing something, or this is a feature request - to provide either History for what changes have been applied to an image, or at a minimum in the Presets section to highlight 'all' presets that have been selected to obtain the final result.
Or maybe I am just crazy :-)