observing inconsistent behavior while sending emails in OTM.

Setup Details:

• Document: VSD.SPAIN_IMPORT_TAXES_REPORT
• Delivery Method: Email
• Triggered via: Data Query + Custom Event + Custom Agent (for controlled testing)

Observed Behavior:

We tested multiple scenarios with recipient configuration:

1. Single email (individual contact):
   • Email is received successfully.
2. Contact Group with only one email:
   • Email is received successfully.
3. Contact Group with multiple emails (e.g., User A + User B):
   • Email delivery is inconsistent:
     • In some cases, one user receives the email while the other does not.
     • Mail audit logs show failure for one recipient, but not consistently the same one.
4. Recreating the Contact Group and re-adding emails:
   • Behavior changes (sometimes a different recipient fails).