When trying to add, edit or view a list item with a Nintex Form, the following error may occur:
Sorry, something went wrong
An unexpected error has occurred.
Troubleshoot issues with Microsoft SharePoint Foundation.
Correlation ID: [guid]
Date and Time: [Date time]
In the logs the following error will occur:
FormatException: GUID should contain 32 digits with 4 dashes (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).
Update to Hot-Fix build 18.104.22.168 or later releases. Please request the Hot-Fix release via Support: firstname.lastname@example.org
This error is caused by an issue in the self reference. Updating should resolve the issue.