# Crash in foreground **URL:** \ **Category:** iOS\ **Tags:** ios\ **Created:** [December 7, 2023, 9:37am UTC](https://devforum.zoom.us/t/crash-in-foreground/99711 "2023-12-07T09:37:13Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![emilrakh](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/emilrakh/32/40654_2.png) [@emilrakh](https://devforum.zoom.us/u/emilrakh)\ **Post date:** [December 7, 2023, 9:37am UTC](https://devforum.zoom.us/t/crash-in-foreground/99711/1 "2023-12-07T09:37:13Z")
**Description** A crash happens if there are numerous participants in the conference when switching to foreground. The same crash appears if the host leaves the conference **Which macOS Video SDK version?** v1.9.5, iOS 15+ **Steps to reproduce the behavior** 1. Log in with a large numerous participants. At the time of the crash, there were more than 350 participants in the conference 2. Go to foreground TestFlight crashlog: ```auto Incident Identifier: 61C5E360-7A8C-4080-AF7F-85DE6F5F4F4B Hardware Model: iPhone13,2 Process: LargeClasses [46651] Path: /private/var/containers/Bundle/Application/5FCE8DF8-9F45-4569-AEFA-623409B3BF7F/LargeClasses.app/LargeClasses Identifier: ru.maximumtest.vision.ios Version: 3.0.3 (39903) AppStoreTools: 15A240a AppVariant: 1:iPhone13,2:17 Beta: YES Code Type: ARM-64 (Native) Role: Foreground Parent Process: launchd [1] Coalition: ru.maximumtest.vision.ios [18117] Date/Time: 2023-11-30 12:48:01.7005 +0200 Launch Time: 2023-11-30 12:42:26.6415 +0200 OS Version: iPhone OS 17.0.3 (21A360) Release Type: User Baseband Version: 4.06.01 Report Version: 104 Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000 Termination Reason: SIGNAL 6 Abort trap: 6 Terminating Process: LargeClasses [46651] Triggered by Thread: 26 Last Exception Backtrace: 0 CoreFoundation 0x18f0da5e0 __exceptionPreprocess + 164 (NSException.m:249) 1 libobjc.A.dylib 0x18740fc00 objc_exception_throw + 60 (objc-exception.mm:356) 2 CoreFoundation 0x18f15ee10 __NSFastEnumerationMutationHandler + 116 (NSEnumerator.m:132) 3 ZoomVideoSDK 0x1069bdda4 0x1069ac000 + 73124 4 ZoomVideoSDK 0x1069cede4 0x1069ac000 + 142820 5 ZoomVideoSDK 0x106a30c6c 0x1069ac000 + 543852 6 ZoomVideoSDK 0x106d576f8 0x1069ac000 + 3847928 7 ZoomVideoSDK 0x106d574c4 0x1069ac000 + 3847364 8 ZoomVideoSDK 0x106d40378 0x1069ac000 + 3752824 9 ZoomVideoSDK 0x1081a29b0 0x1069ac000 + 25127344 10 ZoomVideoSDK 0x1081a2a80 0x1069ac000 + 25127552 11 ZoomVideoSDK 0x10828c2dc 0x1069ac000 + 26084060 12 ZoomVideoSDK 0x1082506f8 0x1069ac000 + 25839352 13 ZoomVideoSDK 0x107f7479c 0x1069ac000 + 22841244 14 ZoomVideoSDK 0x107f74294 0x1069ac000 + 22839956 15 ZoomVideoSDK 0x108258acc 0x1069ac000 + 25873100 16 ZoomVideoSDK 0x1082643f8 0x1069ac000 + 25920504 17 ZoomVideoSDK 0x1082644d8 0x1069ac000 + 25920728 18 ZoomVideoSDK 0x107f76b88 0x1069ac000 + 22850440 19 ZoomVideoSDK 0x107f7e2b0 0x1069ac000 + 22880944 20 ZoomVideoSDK 0x10824e954 0x1069ac000 + 25831764 21 ZoomVideoSDK 0x10824e85c 0x1069ac000 + 25831516 22 libsystem_pthread.dylib 0x1f81d74d4 _pthread_start + 136 (pthread.c:904) 23 libsystem_pthread.dylib 0x1f81d6a10 thread_start + 8 (:-1) ``` ---
**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:** [January 6, 2024, 7:37pm UTC](https://devforum.zoom.us/t/crash-in-foreground/99711/2 "2024-01-06T19:37:28Z")
Closed on January 6, 2024, 7:37pm UTC This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.