Modifications to the policy based backups may not be applied in Backup Exec for Windows Server until the jobs are deleted and recreated.
It has been observed that sometimes changes to the templates in a policy are not implemented/applied by Backup Exec when the policy based backups are executed after the change.
1. Right click on the Policy and select the option "Delete Jobs Created By Policy" as shown in Figure 1 below.
2. Recreate the jobs using the same selection list and policy.
NOTE: Above steps do not lead to any kind of loss of information in Backup Exec.