Icecast - Sep 2018 - How possible is Icecast get 2 different agents from TuneIn App?

Hello guys,
  
 We have implemented auth url in our icecast instance.
  
 So, i installed the Android TuneIn app in my phone, opened it, search for 
our radio and tapped play. The request come from a load balancer that 
redirect to the icecast server. But, looking at the logs we saw:
  
 Load balancer: User-Agent=NSPlayer/10.0.0.3702 WMFSDK/10.0 
X-Real-IP=177.33.155.000
 Icecast: ip=177.33.155.000&agent=Lavf/57.25.100
  
  
 Why the Icecast is getting a different agent (ie ExoPlayer don't have the 
same behaviour)? VPN? Proxy?
  
  
 Best,
 Thiago
  

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