Denzel Chia
Moderator
Post count: 2849
Been thanked: 91 times
#28756 |

Hi,

Edit your slide.

Click on the Screen Options tab and check on Featured Image, the post meta box for entering featured image will appear.

You must have accidentally unchecked it previously.

Please see my screen-cast for more details.
http://screencast-o-matic.com/watch/cDie0MiUdF

Thank you