Denzel Chia
Moderator
Post count: 3230
Been thanked: 129 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