Error 0x887B0001

Value: -2005204991 | 0x887B0001 | 2289762305

What does it mean ?

DXGI_DDI_ERR_WASSTILLDRAWING  
The GPU was busy when the operation was requested.
Value: 1 | 0x0001 | 0b0000000000000001

Where does it come from ?

FACILITY_DXGI_DDI  
DirectX Graphics Infrastructure Device Driver Interface
Value: 2171 | 0x87B | 0b100001111011

StackOverflow

Other Errors for FACILITY_DXGI_DDI