I have a list that I am using a customized Nintex Form. When I view the display form on most of the list items, they open fine. I have one list item where I get an error that says:
Sorry, something went wrong
An unexpected error has occurred.
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I created a default SharePoint Form to view the raw data and it looks just like all of the other list items. This happened to me in task lists before after publishing a change to a workflow. All old tasks would throw this error when trying to open. This is the first time I have seen it happen in a regular Nintex list form.
Looking at the Correlation ID messages on the server logs, the error message says:
The encoding in the declaration 'utf-8' does not match the encoding of the document 'utf-16LE'.
I have compared data from list items that open in the custom form and the one that doesn't and there aren't any differences to the data.