When you go to Craft cards (even in the Crafting mode selected in the UI) whenever you click on a card with a Style set to do so, it treats it like you just wanted to look at the card and will only offer the option to see the ‘Simplified card’ - which you also won’t be able to Craft. The only way around this is to remove the Style completely and then go and Craft it like that before swapping the Style back on.

It’s super annoying and inconvenient for many reasons, not least of which because it means you flat out can’t Craft while deck building.

To replicate this just try to batch Craft some common cards and try it with one that has a Style set for it.