I had a similar issue when I was trying to delete certain rows. The way I overcame it was by iterating through the loop several times using the following:
For c = 1 To 100
Dim d As Long: d = 1
With Sheets("Sheet")
For e = 22 To nLastRow Step 1
If .Range("G" & e) = "" Or .Range("I" & e) = "" Then
.Range("G" & e).EntireRow.Delete
.Range("I" & e).EntireRow.Delete
d = d + 1
End If
Next
End With
c = c + 1
Next
So, basically if you incorporate the outer for loop from my code into your code, it should work.