Reference/Link not found

[Andy]

Hello

In a Word-VBA-Project there are the following references/links (not
sure how it is called in english since I work with a german version)
selected:

Visual Basic for Applications
Microsoft Word 10.0 Object Library
OLE Automation
Normal
Microsoft Office 10.0 Object Library
Microsoft Forms 2.0 Object Library
msrtedit 1.0 Type Library

The Users can download the Word-VBA-Application and generate a Text
with it. The Text they generate with the Application is saved in the
same document of the Word-VBA-Application. The users save the document
and send it back per email.
On reopening the Document/Application there is a Compilier-Error.
In the references/links there is suddenly a new reference (NICHT
VORHANDEN: ~WRC0879.tmp, which means NOT FOUND: ~WRC0879.tmp or smth
like this), as well the order of the references changed slightly it
looks as follows:

Visual Basic for Applications
Microsoft Word 10.0 Object Library
OLE Automation
Microsoft Office 10.0 Object Library
Microsoft Forms 2.0 Object Library
msrtedit 1.0 Type Library
NICHT VORHANDEN: ~WRC0879.tmp (NOT FOUND: .....)
Normal

After deselecting the new reference and saving the document, it can be
opened and run without any problems.

What could be the problem, how can it be solved?

Thanks!

Best regards
Andy