A family of Microsoft word processing software products for creating web, email, and print documents.
How were these "templates" created?
Were they created in Word and saved, in Word, as templates?
Or, did some other program create them and attach a .dotm suffix? Given the path, I suspect the latter.
Try opening a problem .dotm in Word and using SaveAs to save as a template with the same name in the same location. Any difference after you do this?
Why are all of these .dotm templates? Do you really need them macro-enabled?