Date Picker throwing error "'touchUiDialogPath' property invalid or missing"

[#1]

Hi All,
We are upgrading to AEM 6.4 currently and as a part of repository restructuring  we have moved all the workflow related data to
"/conf/global/settings/workflow", during this we also moved out date picker dialog to this folder.

after moving that we are getting
error touchUiDialogPath' property invalid or missing

however, we have configured,
touchUiDialogPath to "/conf/global/settings/workflow/dialogs/schedule_publish_date_picker/cq:dialog"

which is the current location of cq:dialog for date picker.
this date picker has
resourceType : granite/ui/components/coral/foundation/form/datepicker

Can anyone please suggest if anything else is to be done in order to have date picket in workflow dialog path.

Thanks in Advance.

[#2]

Is this article updated?

We are working on AEM 6.4.4.

We also have similar workflow, in one the steps of workflow a participant has to choose activate later and he need to choose date/time from datetime picker.

But the moment we enter anything using datepicker, the date/time values go away and also the datepicker.

In 6.4.3 it used to work, on debugging more I observed that, there is some difference in

/libs/cq/inbox/gui/components/inbox/clientlibs/commons.js between SP-4 and SP-3 for AEM 6.4.

Below is the code from 6.4.4:

dialog.off('coral-overlay:close' + workitemActionDialogNS)

                            .on('coral-overlay:close' + workitemActionDialogNS, function() {

                            // remove the injected dialog pieces...

                            $(".cq-inbox-dialog-injection-anchor").empty();

                        });

Above highlighted line is removing the entire widget from dialog.

Till SP-3 it was working, please suggest. Thanks in advance.