After uploading a word document to box when the client when to open the file they were met with this message.

Is it a requirement for them to work on the document live, not just in reading view and not just in the desktop app. Please can you explain why this is happening. The document is not set to read only and previous documents uploaded the same way have not had this issue. When the file was downloaded and reuploaded on to Box it was fully functioning again.
