I am getting a DDE error screen when opening an XPage or Custom control that is using the Form Layout control that uses a computed value for the formTitle property.
The error is : Element type "xp:label" must be followed by either attribute specifications, ">" or "/>".
The error appears in a modal dialog box which must be dismissed before continuing.
I suspect that this is due to the new DDE tooling trying to create a representation of the form Layout control and not being able to compute the value as in this particular case it relies on a domino document data source that DDE would not have access to.