You do not specify which ConfD release you are using, based on your other post it is quite old, so not everything I write may apply. When you specify a compile-time feature, you need to include a module name, so instead of --feature platform_pizzabox you should have --feature brocade-diagnostics:platform_pizzabox. Failing this would ConfD cause to think that all features of that module are enabled.
With more recent ConfD releases you would get “Bad features spec” error; this has been added in 7.3.