Issue Description

The K2 Workflow reports show instances in running status even though they have completed. This is due to deadlocks that occur in the K2 Server when updating high volumes of item references.

Error Message

A SQL error may occur: “deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction” 


The user may see process instances in “running” state on the K2 workspace site, even when they have completed.


  1. Ensure you have K2 Five (5.2) installed.
  2. Download the K2 Five (5.2) FP26 from K2 Partner and Customer Portal.
  3. Install the K2 Five (5.2) FP26 to apply the fix.
  4. It is recommended to refresh the browser cache.