SYMPTOM:
In Strategy Narrowcast Server 8.1.1, when users send out a report with dynamic date prompts to multiple subscriptions, even all subscriptions share the same prompt answer; duplicate emails are created for each subscription.
STEPS TO REPRODUCE:
Before reproducing the issue, go to 'E-mail' Information Transmitter and launch the editor. Next, click on 'Message Output' tab and select 'Save to File', as shown below:

The default folder is:
C:\Program Files\MicroStrategy\Narrowcast Server\Delivery Engine\SavedMail
Then follow the steps below to reproduce this issue:
CAUSE:
When answering the dynamic date prompt for the subscription, the timestamp is also taken and stored in the subscription preference. For example, if the user picks 5/8, the timestamp (ex. 11:35:20) is also picked by the system, as shown below:

This is a known issue with Strategy Narrowcast Server 8.1.1.
ACTION:
Contact Strategy Technical Support for an update on the status of this issue.