Error 0x88880015

Value: -2004353003 | 0x88880015 | 2290614293

What does it mean ?

LEAP_E_RENDERER_BUSY  
The renderer is already being used by an output object.
Value: 21 | 0x0015 | 0b0000000000010101

Where does it come from ?

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

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