BUG? - Sometimes XG doesn't hold the last packet. (DPI Engine)

Hi,

 

Something interesting has been happening while using the DPI Engine, I've found this happens sometimes after an user accidentally tried to download a malware and managed to do it.

Sometimes the DPI Engine doesn't hold the last packet, and let the user to download the file entirely, apparently without AV scan.

Here's the Rules I've used to test on my computer:

And here's a video of it happening with the standard Eicar file test.