Theme and Colours resetting to default after changing skin and then changing back

One thing I have noticed, a bug maybe?

Whenever I change skin and then change back to Estuary, the following settings reset to default:

Settings/Interface/Skin Theme (where I want to use Curial)
Settings/Interface/Skin Colours (where I want to use Concrete)

I don’t think this is supposed to be default behavior. This is why I tag this as a bug.