Slider Not Working After WP Update

This weekend I updated from WP 4.1.1 to 4.2.2. After the update, I created 3 new posts with Featured images. I then added them to the slider as I’ve done many times in the past. The new posts do not appear in the slider, although the two that were placed in there previously still appear. Site 5 support can find no issues in logs or installed components.

Any suggestions on how to troubleshoot/resolve?