# Crash when using -NoSound and FMODStudioNiagara

**URL:** <https://qa.fmod.com/t/crash-when-using-nosound-and-fmodstudioniagara/22533>\
**Category:** Unreal Engine\
**Tags:** ue5\
**Created:** [January 23, 2025, 6:17am UTC](https://qa.fmod.com/t/crash-when-using-nosound-and-fmodstudioniagara/22533 "2025-01-23T06:17:38Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![swbrown](https://avatars.discourse-cdn.com/v4/letter/s/278dde/32.png) [@swbrown](https://qa.fmod.com/u/swbrown)\
**Post date:** [January 23, 2025, 6:17am UTC](https://qa.fmod.com/t/crash-when-using-nosound-and-fmodstudioniagara/22533/1 "2025-01-23T06:17:38Z")

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When starting the engine with -NoSound and playing sound via Niagara, the engine will crash. This is due to PlayPersistentAudio() not checking the return value from PlayEventAttached() which will be NULL. This affects 2.02.26, didn’t check 2.03.x.

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**Author:** ![Leah\_FMOD](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/leah_fmod/32/3685_2.png) [@Leah\_FMOD](https://qa.fmod.com/u/Leah_FMOD)\
**Post date:** [January 24, 2025, 4:57am UTC](https://qa.fmod.com/t/crash-when-using-nosound-and-fmodstudioniagara/22533/2 "2025-01-24T04:57:50Z")

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Thanks for the bug report, I’ve been able to reproduce it on my end and I’ve passed it along to the development team. Just to confirm, what version of Unreal are you reproducing this on?

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**Author:** ![swbrown](https://avatars.discourse-cdn.com/v4/letter/s/278dde/32.png) [@swbrown](https://qa.fmod.com/u/swbrown)\
**Post date:** [January 24, 2025, 3:38pm UTC](https://qa.fmod.com/t/crash-when-using-nosound-and-fmodstudioniagara/22533/3 "2025-01-24T15:38:16Z")

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5.4 and 5.5.