Environment: SharePoint 2013 On-Premises
We have an approval workflow which is triggered when a user check in a document to a major version. The workflow form is an InfoPath custom form.
Unfortunately, one specific user won't get to see the InfoPath form when in Word (and the workflow doesn't start at all). He is the only known user to have this issue.
Some testing revealed that its user account is not the issue as the same account is working fine on my PC. Furthermore, the InfoPath form will be shown if checking in from the SharePoint Library in Explorer. Both PC have Word 2013.
It looks like there is something related to Word which prevents the workflow from being fired / showing the InfoPath form.
I couldn't find anything about this issue, any hint on what could be the cause?