I have extensive experience in Microsoft SharePoint 2019 and Nintex, having worked on numerous projects that involved troubleshooting and resolving issues with workflows. I've worked with large, complex SharePoint farms, handling installation, configuration, and ongoing troubleshooting tasks. My experience with Nintex spans creating and managing workflows, integrating them with SharePoint, and resolving any errors or issues, such as the 6398 error you mentioned.
To resolve the issues you're encountering, I would begin by thoroughly reviewing your farm's configuration, particularly after the recent updates to SharePoint. I'll identify any potential conflicts or misconfigurations, especially related to the WFE, App, Search, and Cache roles, that may be causing the Nintex workflows to fail. Next, I'll focus on resolving the 6398 error by inspecting the event logs, reviewing any failed jobs, and ensuring that permissions and service accounts are correctly configured. Additionally, I'll test the workflows after resolving the error to ensure they are functioning properly with the latest SharePoint updates and Nintex. Lastly, I'll provide guidance on how to prevent similar issues in the future.
I'm confident I can help you resolve these issues and get your workflows back on track. Feel free to reach out if you have any questions!
Looking forward to working with you.