Issue Description

When you use a data field as a role destination for a user task in a K2 Workflow, an error occurs in the HostServer log.

Error Message

The following error shows in the HostServer log: “The User Manager returned an empty queue”.


The fix is available in the following K2 versions:

K2 4.7 December 2019 Cumulative Update K2 Five (5.0) December 2019 Cumulative Update K2 Five (5.1) November 2018 Cumulative Update K2 Five (5.2) May 2019 Cumulative Update K2 Five (5.3)
X X X Fix Pack 30 Fix Pack 36
  1. Ensure you have the correct K2 version and/or Cumulative Update installed. See KB001893 to see what Fix Pack level you have installed.
  2. Download the latest Fix Pack using the links in the table above for the version you require.
  3. Install the Fix Pack to apply the fix.


After applying the Fix Pack, you need to re-deploy the K2 Workflow.