Delete concatenator while sound is playing

  1. Create a sound cue file
  2. Add a WAV file player to the sound cue
  3. Add a second wave file player to the sound cue
  4. Add a sound concatenator node to the sound cue and link the first and second sound wave players to the concatenator node
  5. Play the sound cue preview
  6. While the sound is playing, delete the concatenator node.
  7. Editor crashes.

Hey Slayemin,

Thanks for catching this one. I was able to easily reproduce the issue and have entered a bug report, UE-32124.

I spoke with one of our Audio Engineers and he took a quick look at the callstack generated from the crash. It seems to be an invalid check with the CurrentChildNode, just in case you were curious. This should be a relatively easy fix and we will have it integrated to an upcoming full engine or hotfix release.

Let me know if you have further questions.