I have a list with a custom InfoPath form. There is a workflow tied to the list which, in turn, starts an approval workflow, then sets fields when the approval workflow completes.
I have full control to the site. When I start the workflow with myself as the approver, I can approve it and everything works correctly. When I specify a coworker as the approver (who also has full control), they get the email through outlook as usual. When they click on "Open this Task" and try to click on "Approve" (or any other option), they get the error:
Outlook cannot complete this action, because of an error in the form's code. A button in the form template is missing an xd:CtrlID attribute.
I am not using any custom code in the form. Anyone have any idea what is going on?
SharePoint 2013, SharePoint Designer 2013, InfoPath Designer 2013, Outlook 2010