After upgrading to Version 0.91, I received this error message in the "Exclude from Search?" column:
Warning: in_array() expects parameter 2 to be array, null given in /home/mysite/public_html/wp-content/plugins/ultimate-category-excluder/ultimate-category-excluder.php on line 59 />
Workaround: If you check anything under that column, save, uncheck, and re-save again, the error disappears.
UCE version: 0.91
PHP version: 5.3.26
MySQL version: 5.5.32-cll
WordPress version: 3.6