Fiddler 2 does not capture traffics from some games

[Quoc]

I'm just a game analyzer as my hobby. I check any Android games to see how it works and if game collect data or not

There is a problem with Fiddler 2 that i don't understand. It does not capture traffics from some games like it goes through Fiddler without Fiddler2 is seeing. No certificate, no any errors. game works fine without captured traffic

I have ensure that I have enabled proxy on Android system, have certificate installed, and check if https decryption is working. All fine. I have reseted cert and fiddler 2 but it doesn't help

All i got is traffic from ads.

Fiddler 2 does work with most of other online games. I just can't find out why Fiddler2 can't capture traffic of some game.

Can you please help me with this problem?

 

Here is screenshot of google.com https decryption: https://imgur.com/e9HtX5M

Here is screenshot of game that does not work with fiddler 2 but with just traffics from ads: https://imgur.com/YKghx9v

Here is screenshot of game with captured traffics https://imgur.com/8e1k4UL

 

 

[Quoc]

I've heard that it uses socket system and it uses json data. Can someone help me with it and how to get fiddler 2 to capture with it?