Error 0x0004258B

Value: 271755 | 0x0004258B | 271755

What does it mean ?

VDS_S_PLEX_NOT_LOADED_TO_CACHE  
This plex is present in the driver, but has not yet been loaded to the provider cache. A volume modified notification will be sent by the service once the plex has been loaded to the provider cache.
Value: 9611 | 0x258B | 0b0010010110001011

Where does it come from ?

FACILITY_ITF  
COM/OLE Interface management. FACILITY_ITF is designated for user-defined error codes returned from interface methods
Value: 4 | 0x004 | 0b00000100

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