Use in the MX Constraint of the attribute of type enumeratio, the name/key value of the enumeration. Not the caption.
Please use the attribute status (type enumeration) in the filter (not TaskName) but after 'not equal' type Archived. Actually your Name of the enumeration (See my sample below)
Actually it is a bug in the module: IVK_ConstraintSave , in the 'text' split. Change the 'propper contraint' [Sic], to
$MxConstraint/Constraint = XLSReport.ConstraintType.Contains
or
$MxConstraint/Constraint = XLSReport.ConstraintType.Equal
or
$MxConstraint/Constraint = XLSReport.ConstraintType.StartWith
or
$MxConstraint/Constraint = XLSReport.ConstraintType.NotEmpty
or
$MxConstraint/Constraint = XLSReport.ConstraintType.NotEqual
or
$MxConstraint/Constraint = XLSReport.ConstraintType._empty
The engine can handle this.
Beware the update procedure in the future