Why isn't there a radical breakdown for all of the kanji?

I love it when you can see the radicals (or other kanji) that make up the kanji you’re learning, but that option is only there half the time. Does anyone know why?

All kanji cards have a radical breakdown. The vocab ones don’t, even for single-kanji vocab, but the kanji ones do. Which ones are missing?

Ah, that makes sense, thanks for letting me know.