avi mjeg decoding windows 1803 mfmjpegdec dll issue ?

Hi,
I' have an issue using an avi Mjpeg file with the last update of Windows 10.

Last time I have tested my application, it's worked well with Windows 10 version 1709.

With the last update 1803. it's not working.
My video AVI has a resolution of 720x576 (Interleaved frames).

I use format MFVideoFormat_YUY2 for decoding,

With the Windows version 1709 , when I call IMFMediaBuffer lock function the pcbCurrentLength
parameter return the value  829440.
This is correct ( 720x576*2). (*2 for YUV decoding format).

The same programme with windows version 1803 the return value is 414720.
And output datas are set to zeros.

I suspect an issue on the mfmjpegdec dll .

Regards,

Joël