# BUG: transition timeline makes nested event play forever while untriggered
**URL:** https://qa.fmod.com/t/bug-transition-timeline-makes-nested-event-play-forever-while-untriggered/17774
**Category:** FMOD Studio
**Created:** [October 10, 2021, 9:06pm UTC](https://qa.fmod.com/t/bug-transition-timeline-makes-nested-event-play-forever-while-untriggered/17774 "2021-10-10T21:06:08Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Alcibiade](https://qa.fmod.com/u/Alcibiade)
#### Post date: [October 10, 2021, 9:06pm UTC](https://qa.fmod.com/t/bug-transition-timeline-makes-nested-event-play-forever-while-untriggered/17774/1 "2021-10-10T21:06:08Z")
If the parent event untriggers a nested event while the content playing inside the nested event is inside a transition timeline, the nested event continues to play indefinitely. It seems like the nested event is seen as a one shot event (played entirely while being untriggered), whereas it is a looping event. The workaround is simply to check the “cut” button, or to set an AHDSR on any track’s fader in the nested event.
By the way, I have a suggestion, somewhat related. If the nested event is detected as non-one shot (containing any kind of loop, transition or sustain point), why don’t you hide the “cut” button (or lock it in an activated state), since it doesn’t do anything? It would probably make people less confused.
[FMOD Studio 2.02.00]
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### Author:  [@richard\_simms](https://qa.fmod.com/u/richard_simms)
#### Post date: [October 15, 2021, 12:50am UTC](https://qa.fmod.com/t/bug-transition-timeline-makes-nested-event-play-forever-while-untriggered/17774/2 "2021-10-15T00:50:09Z")
I’ve tried to reproduce the issue but I’ve not been able to on this end. Do you have a video or a project that demonstrates this?
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### Author:  [@Alcibiade](https://qa.fmod.com/u/Alcibiade)
#### Post date: [October 15, 2021, 8:16am UTC](https://qa.fmod.com/t/bug-transition-timeline-makes-nested-event-play-forever-while-untriggered/17774/3 "2021-10-15T08:16:31Z")
Sure. Here it is: [link](https://drive.google.com/file/d/1-hSxBPc9XUP4BuivCmmEoUNB8s6NC5Rj/view?usp=sharing). It’s the bug #2. Detailed description inside.
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### Author:  [@richard\_simms](https://qa.fmod.com/u/richard_simms)
#### Post date: [October 18, 2021, 5:10am UTC](https://qa.fmod.com/t/bug-transition-timeline-makes-nested-event-play-forever-while-untriggered/17774/4 "2021-10-18T05:10:49Z")
This definitely seems like a bug. I’ve raised this as a bug report and it will be looked into for a future update. Thanks for bringing this to our attention.