ISSUEAfter updating or modifying an item, workflows designed to be triggered by a parent workflow, or started manually by an administrator, might unexpectedly run.
- Download and install SharePoint Manager from the following site: https://spm.codeplex.com/.
- Once installed, browse to the affected list.
- Open the event receivers folder.
- Delete all Nintex Event receivers.
- Republish the workflow to re-create the event receivers.