Hi Nattapong,
as far as I can see datafeed CABs that contain information about updates and bulletins get download and imported successfully but WindowsPatchData.zip (that contains information about assessment rules and deployment instructions) fails to download.
I would double check that the problem was not intermittent (this may happen if you try to perform import exactly at the time of Akamai cache update with new PMImport build) and also try steps suggested by Igor.