Hi,
Thank you for taking your time to write this in the forum,
There are various reasons for file corruption, it's a general thing with all kinds of files. However, there are some areas that are more common than others, such as:
- Read/write failure to the storage media.
- Program crashes (especially when writing data to the RVT model).
- An add-in that modifies elements in ways not possible or desired through the normal UI.
- Untested operations or series of operations (e.g. cancelling a synchronize, or using the Undo command after synchronizing).
Having the latest version installed is important, for example throughout the lifespan of Revit 2015 we have 14 updates where each one of them contributes to a functioning product. So if you haven't already, I would check that every single user is running the latest version and this applies to all our products - the Autodesk Desktop App will notify you every time there's a new update - it will be the same for whatever release you may be using.
Note: Updating will not correct already corrupt files.
As to specific files, we would be more than happy to go through the files and correct whatever might cause conflict.
I would recommend everyone with these issues contact us as soon after the first error as possible, as it may become bigger with time.
Thanks again,
Best Regards,
Jacob Westergaard
Autodesk Product Support Team
Revit/CAD Specialist

Jacob Westergaard
Autodesk Premium Support Team
AEC Premium Support Services