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In certain environments the InfoPath integration causes the Client Event InfoPath form to be reloaded from its SharePoint location when attaching an attachment.
Note: The error will only occur if the form contains a repeating section with a file attachment element in it; and it will only reload if the form does not contain a file attachment when opened in the client event.

Error Scenario

Note: The steps below describe scenarios under which this error may occur. The steps below are simplified and not all the steps will be shown or described.
  1. If an Update action was executed it will reload the form from the site and show the old data.
  2. If a Finish action was executed it will try to reload the form, but it has already been deleted by the succeeding rule - This will cause a "Not a valid InfoPath form" exception.

Error Message

The following error message relates to this issue:
  • “Not a valid InfoPath form”

Error Resolution

This Hotfix is contained within the latest K2 blackpearl 0807 Update. Install the update package to resolve the error.

The latest K2 blackpearl 0807 Update is available as an independent installation package which can be found here: https://portal.k2.com/downloads/bp/default.aspx