Desktop app displaying incorrect cards

[cqg]

Have you tried to change your video drivers?

Back of card not appearing

Sometimes, when I press the space bar to view the answer to a card, the answer fails to appear, however the ‘again, good, easy’ options do appear. So the screen displays the front of the card still, along with the ‘again,good,easy’ options at the bottom, not displaying the answer. Sometimes it just displays a blank white screen with the ‘again, good, easy’ at the bottom. This event occurs erratically and isn’t specific to particular cards. It has happpened ever since I got Anki about 5 years ago…