Error 0x88880012

Value: -2004353006 | 0x88880012 | 2290614290

What does it mean ?

LEAP_E_GRAPH_RUNNING  
Function cannot be called while the LEAP graph is running.
Value: 18 | 0x0012 | 0b0000000000010010

Where does it come from ?

FACILITY_LEAP  
XAudio2 Internal Errors
Value: 2184 | 0x888 | 0b100010001000

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