Closed Unassigned: DG DAT MSG out of expected sequence in GetImageInfo [5156]

Hello all,
performing an acquisition using NativeTransfer, on Event XferDone i ask for image info using the following code


private void twain32_XferDone(object sender, Twain32.XferDoneEventArgs e)
{
Twain32.ImageInfo _info;
_info = e.GetImageInfo();
}

but on the second line i get an exception, whose message is:
MSG out of expected sequence

So I can't read in this case the imageInfo. I need them to know the real size of the image, for measurement purpose.

Thank you.