Update Rollup 1 for System Center 2012 R2 Data Protection Manager is now available and resolves the following issues:
A 0x80070057 error occurs when a session is closed prematurely. This error is caused by a failure during a consistency check.
Lots of concurrent threads or calls to Microsoft SQL Server from the Data Protection Manager (DPM) console cause slow SQL Server performance. When this issue occurs, the DPM console runs out of connections to SQL Server and may hang or crash.
The DPM console crashes, and an error that resembles the following is logged:
Paths that begin with \\?\GlobalRoot are internal to the kernel and should not be opened by managed applications.