It seems playing, stopping, and playing a Metasound is impossible to do. It will only play one time, then after you stop it, it cannot be played again.
To reproduce the behavior:
Create a new metasound object with a wave player that has an input trigger for Play, and an input trigger for Stop. Create a new actor blueprint, add an audio component, set the Sound to the metasound you made, and make a function to play the metasound and one to stop the metasound, then place the actor in the world (either using the metasound instance > GetParameterInterface > Trigger, or by just using the standard Play/Stop functions for audio components).
Now try to play it, stop it, then play it again. The first play and stop will work fine, the second time you play it, nothing happens.
It works fine when your audio component is using a sound cue, but not a metasound.
I was able to get the sound to play again by adding a “Play” Audio Component node to the actor blueprint that plays the metasound. Specifically, I added it before triggering the input parameter.
@josiest is right his answer is correct! I want to add that If you have multiple “deactivate” nodes and “activate” (for a specific audio component) along with “play” “Stop” or “execute parameter” make sure after activating you use the delay node for at least 0.1 seconds only in the situation of you not be able to hear your sound playing but with print string isPlaying says that it is playing (this should fix it).
Thx this helped me out a lot. I tried adding play after dynamically creating the audio component and assigning a meta sound to it, but that didn’t work. Only when I add it in chain with the trigger, it’ll work.
maybe this is not the problem. But if you dont like the delay thing - maybe you can play ths sound using Quartz… Dan Reynolds has good explanations for that on youtube here: