Thanks for the bug report and testing through several browsers!
Its is bug in the 7.5.x series for sites that have a larger-than-stock collection of moods.
https://www.ubbcentral.com/forums/ubbthreads.php/topics/255576#Post255576It has been fixed in 7.6.0 (2015-02-21)
https://www.ubbdev.com/forums/ubbthreads.php/topics/320845.htmlEither follow the directions posted in that first link, or advise your users to scroll that page with the arrow keys on their keyboard.
