Do not hear any audio when using Media Audio "Let app decide"

Hello the app is great and it does what I initially intended for it to do.
My only issue which I didn't see on your trouble shooting web pages is when I want to connect to my phone to the auxiliary jack via wire. When I have the "Media Audio" set to "let app decide," I do not hear anything not even my Bluetooth a2dp when I unplug the wire and switch the Bluetooth on. I would have to either put it on wire or Bluetooth which ever I'm using at the time which is annoying.
I have a Galaxy S4. Please let me know if I'm doing something incorrect.

With the "media audio" setting on "Let app decide", the app will favor Bluetooth A2DP if there is a device that is paired and connected to your phone.

With the "media audio" setting on "Let app decide" (no Bluetooth A2DP device connected), it should automatically switch to wired headphone mode when you plug in the auxiliary 3.5mm cable. When you un-plug the cable it would switch to the phone's speaker (unless the phone has an issue with not being able to detect headphones being plugged in).

1) If you go into SoundAbout's "Wired Headset behavior" and look at the "Wired Headset detection" setting; is it checked?

2) If you go into SoundAbout's "Bluetooth behavior" and look at the "(A2DP) Media audio usage"" setting; is it checked?

3) If #2 is checked, could there be a Bluetooth A2DP device connected with the volume turned down all the way that is near the phone?

4) Does the S4 have some built-in audio profiles that could be affected the audio? I usually just turn those profiles off.

Also, If you want, try the latest Beta version located here:
https://soundabout.forumotion.com/f8-download-beta-versions