Issue Description
When an E-mail event is configured on an activity in K2 Studio, and the activity destination uses an Active Directory Group, each user in the group receives duplicate e-mails for the activity at runtime.

Resolution

  1. Ensure you have K2 4.7 installed.
  2. Install the K2 4.7 February 2017 Cumulative Update.
  3. Get the K2 4.7 February 2017 Cumulative Update FP7 from Regional Support.
  4. Install the K2 4.7 February 2017 Cumulative Update FP7 to apply the fix.