424 object required in userform

so by setting the break points ive traced It back to the line where is try to add my dynamic named range to combobox2

Private Sub UserForm_Initialize()
 ComboBox1.List = Range("janinvoices").Value
ComboBox2.List = Range("jobs").Value
End Sub

below is the code in the named range to add the jobs to the range, it seems to work in the names section?

=OFFSET(jobs!$A$2,0,0,COUNTA(jobs!$A:$A),1)