Question
After performing a query on the Nintex content database to determine running workflow instances, there are workflows that should already be cancelled based on the workflow status within SharePoint.
Answer
Run the below nwadmin command.
NWAdmin.exe-oSyncTerminatedWorkflows-urlteamsiteurl
More Information: NWAdmin Operations Guide
NWAdmin.exe-oSyncTerminatedWorkflows-urlteamsiteurl
More Information: NWAdmin Operations Guide