This has been happening for several months now with a specific subfolder on a file/QuickBooks server. Error ID is 33415. When I click the link to open the list of files that failed, they all list "DATA FAILURE" and then "0x80070002". I'm not sure if that means anything.
I already checked and the UNC path is not longer than 256 characters.
Some of the files are QBW files, some are Word documents, some are .cfx, .gen. All of the ones with this issue are under the same parent folder but within there there is a bunch of variation. Some are in the root, some are a few folders deep, etc.
The backup-to-disk works just fine.
The documentation on DPM is horrendously lacking, so I'm hoping someone out there may be able to point me in the right direction? I did find one result from a couple of years ago but the "solution" provided by someone was to ensure the latest version of the MARS agent was installed. I've already done that.