Blury text caused by invisible clips?

I made this simple flash card activity by calling the card_key instance (the index card flattens), calls the card instance of the clicked term by a function and makes is visible, and then plays the rest of the card_key to simulate the card coming back to the index.

The problem is that I’m getting a blur effect on some of my cards. Please d/l the fla linked below and when you test the fla click on “defendent” or “original jurisdiction” and look at the second line of text. There is a slight blur effect and I can’t pinpoint why. It appears to be in the same area where I have all my card clips sitting, but they are supposed to be invisible until called.

The cards look ok if you pull them up in illustrator, or even in the fla. Any ideas on this one?