Sounds won't un-pause after a delay on macOS.

Development Audio
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1

I have a project with a map that acts as a level select. There is background music in this map, but if the user has just finished a level prior to entering the level select, the music is paused until a short animation plays and then the music is un-paused again. Effectively the music doesn’t start until the animation has finished.

This works just fine on Windows but does not work on macOS.

I have determined that if I call “Set Paused” with pause set to false with a delay of 0.05 seconds, the music starts up again just fine. If the delay is 0.2s, the music will not play at all.

What can I do to get the music to play correctly on macOS?

I am running on UE 4.20.3, but have tried opening the project in 4.21 and have seen the same issue. I am on macOS 10.13.6.

2

As a work around I just discovered that if I replace all “Set Paused” calls with “Stop” and “Play” calls, the music works as expected on macOS. Obviously something is broken in the “Set Paused” implementation on macOS still though.