Hi guys. I am having a problem where the Title property on a document (or more specifically any docx or xlsx document) using a certain content type is being made blank when a user edits the document. There are no event receivers and no workflows running on the document. Here are the steps that recreate it for any document that uses my custom content type:
1) Upload a docx file into a library, populating the title field.
2) Check in.
3) Go to edit the item - in this case force check-out is in place so it checks out the document.
4) Change another property. Hit save.
5) The title field is now blank!
This only does it on my content type (or any that inherit from it), but I've tested it on 3 different servers with varying degrees of updates and it's the same result every time. There is nothing special about the content type (it inherits from Document) and just has a few extra fields in it. I have not included the contents of the elements file used to define it for brevity but happy to provide if needed. Any ideas are welcome.
Many thanks,
Mike