Combine Flash cards and Dialogue Cards
Flash Cards and Dialouge card content types should be combined (they are largely redundant).
I like the recent update to the dialogue cards to use the Lietner system, but this should also be in the Flash card content type so that mastery is determined by inputting the correct answer, not just by the user "saying" that they have it right.
To me it doesn't make sense to update both of these content types.
You could have a setting for the "flash cards" so that they are not graded thus acting more like dialogue cards.