Two Background Audio Files

I am trying to use two background .mp3 files, one as a voiceover and the other as an SFX. While the voiceover works like a charm i simply cant hear the SFX. Any suggestions!

Hello, VivekC. You can’t hear the SFX even without the voiceover audio?
Maybe the audio spec is not supported.

If you use Linux or macOS, launch SYnfig Studio from console/terminal to get the log.

If on Windows, enable the console window by adding --console switch in the .bat file of the portable version. I can’t remember the full filename now.