Flashcard error in Edge

Hi,

We've got a course which contains the 'Flashcard grid'. It all works perfectly in Chrome (and subsequently in IE), but in MS Edge, the initial flip works correctly, but if the user flips the card back, it displays flipped text on top of the image.

The flashcards are set up with an image on the first side (the side which is initially visible) - then the second side contains text.

As I say - the initial load is all fine with all of the cards shown with the images (brand logos) showing. When the user clicks to flip the card over - the text is shown correctly, and the image (logo) is not shown. However if the user then flips the card back over (to the image side up) - the image is shown, but the reversed text is also shown. Flipping back over returns to correct text again, but flipping back to the image side continuously shows the reversed text as well as the image.

I've attached an image of how one of the cards looks when flipped back to the original side.