Error 0x8AC70011

Value: -1966669807 | 0x8AC70011 | 2328297489

What does it mean ?

XACTENGINE_E_UNKNOWNEVENT  
Unknown event type.
Value: 17 | 0x0011 | 0b0000000000010001

Where does it come from ?

FACILITY_XACTENGINE  
Microsoft Cross-Platform Audio Creation Tool (XACT)
Value: 2759 | 0xAC7 | 0b101011000111

Other Errors for FACILITY_XACTENGINE