I think I found a bug. When creating a character, choosing the Sorcerer (2024) and subclass Draconic Sorcery, it doesn't add the spells that subclass automatically learns.

It's worth pointing out that the character builder's behavior for Sorcerer subclass spells is a little different from the way it works for some other classes. It does add the always-prepared spells to the character sheet, but it doesn't mark them as "always prepared" in the list of spells you can select in the character builder or stop you from selecting them again there. This might make it look like they're not being automatically added, when in fact they are.

If I recall correctly, Clerics, Druids, and Paladins correctly mark their subclass-specific spells as "always prepared" in the character builder, while the other classes that have subclass-specific spells don't. This is clearly not ideal, but it seems that it hasn't been addressed because its impact is pretty minor.