Hi,
Do you mean the IP to Name that is at the very start of the ASA configuration when checking it from CLI?
Are you sure that someone hasnt configured "no names" instead of the "names" which is to my understanding required for the name to replace the IP address in the configurations.
Personally I don't use the configurations mentioned. Maybe do some IP to Name mappings but dont have them used in the actual configured by issuing "no names"
- Jouni