We have a K2 form connected to a SharePoint list. Out of the 1,000s of submissions we've received, there are 29 blank items. Typically, I would suspect that the accounts attempting the submit the form didn't have permission to contribute to the SharePoint list, but that's not the case. Also, with most of the blank items, the same account created an item around the same time.
Unfortunately, I'm not able to confirm whether or not the users received any error messages. I couldn't find anything in the K2 logs to explain the blank items.
Has anyone else experienced this issue with intermitten blank items being written to a SharePoint list?