Everything works except iOS, and I think that I need to enable "resample" option to uprate the audio to more than 32k.
The thing is that when I enable "resample" audio stops working, I hear nothing.
I can confirm it because I also tried directly with VLC (http://x.x.x.x:yyy/hdmi)
These are my audio settings:

I tried upgrading from version 1.1.12 to 1.1.96 and it is still the same.
My workardound for now is to disable resampling, but I have to transcode the audio later and I don't want to do that.
Is there anything I can do?