Avoid using alarm definition group names that are greater than 8 characters in length. While group names can be up to 16 characters, because of space constraints, the alarm views display only the first 8 characters of the names. You will not see the complete group name if it is longer than 8 characters.
If you want to use group names that are longer than 8 characters, you might want to create customized views that display up to the full 16-character names.