# Crashing Breakout rooms

**URL:** <https://devforum.zoom.us/t/crashing-breakout-rooms/48544>\
**Category:** iOS\
**Created:** [April 21, 2021, 6:28pm UTC](https://devforum.zoom.us/t/crashing-breakout-rooms/48544 "2021-04-21T18:28:41Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![steven.otoole](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/steven.otoole/32/24587_2.png) [@steven.otoole](https://devforum.zoom.us/u/steven.otoole)\
**Post date:** [April 21, 2021, 6:28pm UTC](https://devforum.zoom.us/t/crashing-breakout-rooms/48544/1 "2021-04-21T18:28:42Z")

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**Description**  
The iOS Zoom SDK randomly crashes as we leave and re-enter a breakout room. It usually takes about five or six round trips. But after that, for example:

> Thread 34: EXC\_BAD\_ACCESS (code=1, address=0x0)  
> MobileRTC`\_\_\_lldb\_unnamed\_symbol74381$$MobileRTC

or:

> Thread 1: EXC\_BAD\_ACCESS (code=1, address=0x22de42066fe8)  
> MobileRTC`\_\_\_lldb\_unnamed\_symbol35648$$MobileRTC

**Which iOS Client SDK version?**

> 5.5.12509.0401

**To Reproduce(If applicable)**  
Steps to reproduce the behavior:

1. Get invited to a breakout room
2. Get onHasAttendeeRightsNotification
3. Call attendee.joinBO()
4. After the BO view controller loads, call attendee?.leaveBO()
5. Repeat steps #3 & #4 until crash

**Screenshots**

 ![crash-zoom-main](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/d/c/dc54da4e0387a4bc2dbba0c24bba319a182cee49.jpeg)

 ![crash-zoom-bg](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/5/b/5b853ab39353e1b9ebe0ea74004c8f84038ebf21.jpeg)

**Smartphone (please complete the following information):**

- Device: iPad mini 5 plus simulator
- OS: 14.4.2

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**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\
**Post date:** [April 21, 2021, 10:22pm UTC](https://devforum.zoom.us/t/crashing-breakout-rooms/48544/2 "2021-04-21T22:22:39Z")

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Hey @steven.otoole,

Thanks for using the dev forum!

Can you reproduce this one last time and obtain the SDK logs and crash log? They can be found be following the instructions at the bottom of this page [https://marketplace.zoom.us/docs/sdk/native-sdks/iOS/mastering-zoom-sdk/sdk-initialization](https://marketplace.zoom.us/docs/sdk/native-sdks/iOS/mastering-zoom-sdk/sdk-initialization). Please email them to me at [DeveloperSupport@zoom.us](mailto:DeveloperSupport@zoom.us) and include a link to this post.

Thanks!  
Michael

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**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\
**Post date:** [May 17, 2021, 8:50pm UTC](https://devforum.zoom.us/t/crashing-breakout-rooms/48544/3 "2021-05-17T20:50:31Z")

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Hey @steven.otoole,

Can you answer the following?

1. Can it be reproduced in the sample project？
2. Is it happening in Custom UI or Default UI?
3. Are there any preconditions to reproduce this problem(e.g., attendees count and BO meeting count)?

Thanks!  
Michael

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<div class="post-metadata">

**Author:** ![steven.otoole](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/steven.otoole/32/24587_2.png) [@steven.otoole](https://devforum.zoom.us/u/steven.otoole)\
**Post date:** [May 17, 2021, 11:37pm UTC](https://devforum.zoom.us/t/crashing-breakout-rooms/48544/4 "2021-05-17T23:37:28Z")

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Hi Michael –

Since your engineers were not able to reproduce this, I thought I would dig deeper into whether it could be our issue. It’s confusing to me because sometimes the crash is in your SDK code, but sometimes it’s in our code.

Thanks,  
Steven

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**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\
**Post date:** [May 18, 2021, 7:28pm UTC](https://devforum.zoom.us/t/crashing-breakout-rooms/48544/5 "2021-05-18T19:28:53Z")

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Hey @steven.otoole,

Interesting. I think we will need further info, please let me know what you find.

Thanks!  
Michael

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**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [June 18, 2021, 5:29am UTC](https://devforum.zoom.us/t/crashing-breakout-rooms/48544/6 "2021-06-18T05:29:33Z")

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Closed on June 18, 2021, 5:29am UTC

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