Call IMFActivate::ActiveObject crash

Hi.  I have a problem on a special PC. A part of code as follow

unFlags = MFT_ENUM_FLAG_HARDWARE;hr = MFTEnumEx(MFT_CATEGORY_VIDEO_ENCODER,
        unFlags,
        &input,      // Input type        
&output,       // Output type        
&ppActivate,
        &count);
    if (SUCCEEDED(hr) && count == 0)   
 {        
hr = MF_E_TOPO_CODEC_NOT_FOUND;    
}
    // Create the first decoder in the list.   
 if (SUCCEEDED(hr))    
{
        for(int i = 0; i < count; ++i)
	{	
		hr = ppActivate[i]->ActivateObject(IID_PPV_ARGS(&pCodec));               
        }     
}

MFTEnumEX returns S_OK ;

count is 1;

 when execute ActivateObject, the application is crash.

error code is 0xc000041D

I tried to update windows and drivers. but not work.

Current solution is catching the crash and use other encoder to do this job

Is anyone have this issue?

how can i solve the problem in another way?

Tks