Web Filtering Issue in v.5.2.2

[YtseJam]

Good day, We try to use the flow-based and dns options in web filter profile then apply to our policy but after that we cannot browse any site. We cant ping also domain (google.com, yahoo.com) only the public dns we ping. But we do have skype running online. Gmail attachment also failed even in 1mb-17mb. These all happen when we upgrade our firmware to 5.2.2 from 5.2.0. Kindly see also screenshot for the web filter profile when selecting dns or flow-based options. It does not happen in v.5.2.0 it just now when running 5.2.2. Is it a bug in v.5.2.2, because we're using flow-based/dns options in v.5.2.0 before and doesn't have issue. Solutions we tried: 1. We create new profile for web filter in proxy settings only. It works fine. 2. We disable email filter, dlp, ips but it didn't work while running the web filter profile that in dns/flow-based options. 3. We disable web filtering in our policy, it works fine. 4. Switch again to web filter profile using flow-based/dns options, then same problem again.

Regards,

Jam