SYMPTOM:
The following four layers can be formatted in a custom group:

Format applications have the following effects:
For instance, if the element values are formatted to appear to be bold, then the individual item values are also displayed bold and are not displayed by their default settings.
CAUSE:
This is a known issue with Strategy Developer 9.x and 10.x.
ACTION:
Contact Strategy Technical Support for an update on the status of this issue.
WORK AROUND:
When formatting is applied to element values in a custom group, a user should also set the formatting on the individual item values explicitly for the individual items to have their own formatting.
KB13619