VBA / Word Picture Content Control Causing Unreadable Content?

I am using VBA to create a word document (.docx). This word document contains plain text content controls as well as picture content controls. I then use VBA to automatically select a picture based on the code below

Code:
Set oCC = Word.ActiveDocument.SelectContentControlsByTitle("TabPic").Item(1)
On Error GoTo TabErrorHandler
oCC.Range.InlineShapes.AddPicture Filename:="X:XFERANDREW-TDCD " & LblVL &

[Code].....

After the document has been closed down I try to open it again and I am told "The file cannot be opened because there are problems with the contents."

When I click details it says "Unspecified error" and "Location: Part: /word/document.xml, Line: 2, Column: 0"

If I click ok it says "Word found unreadable content in "". Do you want to recover the contents of this document? If you turst the source of this document, click Yes.

Clicking Yes opens the document with all the contents and it is now renamed to Document 1. If I click no it does not open.