VBA code to insert blank rows doesn't always work - excel

Question

I'm trying to insert a blank row between 2 rows if the values in A1 <> A2. I was given the code below and it works if the data looks like this a,a,b,b,c,c,d,d,e,e,f,f,g,g,h,h,i,i. The results are exactly what I'm looking for: a, blank row, a, blank row, b blank row, b, blank row, c, blank row, c, etc.
However, if the data looks like this a,b,c,d,e,f,g,h,i then I get 8 blank rows between a and b but none anywhere else.
Any ideas why this is happening like this?
Sub Social_Distance()
Dim ws As Worksheet: Set ws = ThisWorkbook.Sheets("Sheet2")
Dim lr As Long, MyUnion As Range, xCell As Range
lr = ws.Range("A" & ws.Rows.Count).End(xlUp).Row
For Each xCell In ws.Range("A2:A" & lr)
If xCell.Value <> xCell.Offset(1).Value Then
If Not MyUnion Is Nothing Then
Set MyUnion = Union(MyUnion, xCell.Offset(1))
Else
Set MyUnion = xCell.Offset(1)
End If
End If
Next xCell
If Not MyUnion Is Nothing Then MyUnion.EntireRow.Insert Shift:=xlDown
End Sub

Answer 1

Maybe this is what you need, It works well with different consecutive value cases:
Note: when two consecutive cells (in the same column) are added, it will be treated as one cell (this is how union works) so you will get the Position of another Cell in the same Row but diferrent Column, now the result: union = yellow range [see an image]
Sub Social_Distance()
Dim ws As Worksheet: Set ws = ThisWorkbook.Sheets("Sheet2")
Dim lr As Long, MyUnion As Range, xCell As Range
lr = ws.Range("A" & ws.Rows.Count).End(xlUp).Row
k = 1
Dim cell As Range
For Each xCell In ws.Range("A2:A" & lr)
If xCell.Value <> xCell.Offset(1).Value Then
If Not MyUnion Is Nothing Then
Set MyUnion = Union(MyUnion, xCell.Offset(1, k)): k = k + 1 'increase column index
Else
Set MyUnion = xCell.Offset(1, 0)
End If
End If
Next xCell
If Not MyUnion Is Nothing Then MyUnion.EntireRow.Insert Shift:=xlDown
End Sub
For example:

Answer 2

this uses a helper column and sorting to put in blank rows:
Sub Social_Distance()
Dim ws As Worksheet
Set ws = ThisWorkbook.Sheets("Sheet14")'change to your sheet
Dim lr As Long
lr = ws.Range("A" & ws.Rows.Count).End(xlUp).Row
Dim rngArr As Variant
rngArr = ws.Range(ws.Cells(1, 1), ws.Cells(lr, 1)).Value
Dim rowArr() As Variant
ReDim rowArr(1 To lr - 1, 1 To 1)
Dim x As Double
x = 0#
Dim i As Long
For i = 2 To lr
If rngArr(i, 1) <> rngArr(i - 1, 1) Then x = x + 1
rowArr(i - 1, 1) = x
Next i
Dim newLineArray() As Variant
ReDim newLineArray(1 To Int(x - 1), 1 To 1)
For i = 1 To Int(x - 1)
newLineArray(i, 1) = CDbl(i) + 0.1
Next i
ws.Columns(1).Insert
ws.Range("A1").Value = "Temp"
ws.Range("A2").Resize(lr - 1).Value = rowArr
ws.Range("A" & lr + 1).Resize(Int(x - 1)).Value = newLineArray
ws.UsedRange.Sort key1:=ws.Range("A1"), Header:=xlYes
ws.Columns(1).Delete
End Sub