Unreal Engine Issues

UE-121011

Crash in FLandscapeRenderSystem on Mobile

Crash in FLandscapeRenderSystem on Mobile

Description

Similar issues have already been reported here for iOS [https://udn.unrealengine.com/s/question/0D52L00004vJelTSAS/crash-ios-in-flandscaperendersystemcomputesectionperviewparameters] and here [https://udn.unrealengine.com/s/question/0D52L00005OMpgySAD/crash-on-android-in-landscaperender-in-4261] 

Seems probably not Quest specific, but mobile in general, but I don't have an mobile device other than Quest to confirm

Steps to Reproduce
  1. Launch attached project on Android
  2. Look around and notice all three Landscape actors are visible
  3. After a few seconds of looking around, a crash occurs

I tested with Quest 2 and confirmed the crash

Callstack
LogPlayLevel: --------- beginning of tracking
 LogPlayLevel: 08-04 16:11:47.073 23176 23233 D UE4 : Assertion failed: (Index >= 0) & (Index < ArrayNum) File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Core/Public\Containers/Array.h [Line: 674]
 LogPlayLevel: 08-04 16:11:47.073 23176 23233 D UE4 : Array index out of bounds: 20 from an array of size 60
 LogPlayLevel: 08-04 16:11:47.073 23176 23233 D UE4 : [2021.08.04-23.11.47:073][ 64]Assertion failed: (Index >= 0) & (Index < ArrayNum) File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Core/Public\Containers/Array.h [Line: 674]
 LogPlayLevel: 08-04 16:11:47.073 23176 23233 D UE4 : Array index out of bounds: 20 from an array of size 60
 LogPlayLevel: Error: 08-04 16:11:47.074 23176 23233 D UE4 : [2021.08.04-23.11.47:074][ 64]LogAndroid: Error: === Critical error: ===
 LogPlayLevel: Error: 08-04 16:11:47.074 23176 23233 D UE4 : [2021.08.04-23.11.47:074][ 64]LogAndroid: Error:
 LogPlayLevel: Error: 08-04 16:11:47.074 23176 23233 D UE4 : [2021.08.04-23.11.47:074][ 64]LogAndroid: Error: Assertion failed: (Index >= 0) & (Index < ArrayNum) File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Core/Public\Containers/Array.h [Line: 674]
 LogPlayLevel: Error: 08-04 16:11:47.074 23176 23233 D UE4 : [2021.08.04-23.11.47:074][ 64]LogAndroid: Error: Array index out of bounds: 20 from an array of size 60
 LogPlayLevel: Error: 08-04 16:11:47.074 23176 23233 D UE4 : [2021.08.04-23.11.47:074][ 64]LogAndroid: Error: [Callstack] 0x00000000B6E422C4 libUE4.so(0x0000000005A382C4)!TArray<unsigned char, TSizedDefaultAllocator<32> >::RangeCheck(int) const::'lambda'()::operator()() const []
 LogPlayLevel: Error: 08-04 16:11:47.074 23176 23233 D UE4 : [2021.08.04-23.11.47:074][ 64]LogAndroid: Error: [Callstack] 0x00000000BACA7888 libUE4.so(0x000000000989D888)!FLandscapeRenderSystem::ComputeSectionPerViewParameters(FSceneView const*, int, float, bool, bool, FVector, FMatrix) []
 LogPlayLevel: Error: 08-04 16:11:47.074 23176 23233 D UE4 : [2021.08.04-23.11.47:074][ 64]LogAndroid: Error: [Callstack] 0x00000000BACD6138 libUE4.so(0x00000000098CC138)!TGraphTask<FLandscapeRenderSystem::FComputeSectionPerViewParametersTask>::ExecuteTask(TArray<FBaseGraphTask*, TSizedDefaultAllocator<32> >&, ENamedThreads::Type) []
 LogPlayLevel: Error: 08-04 16:11:47.074 23176 23233 D UE4 : [2021.08.04-23.11.47:074][ 64]LogAndroid: Error: [Callstack] 0x00000000B7F28874 libUE4.so(0x0000000006B1E874)!FTaskThreadAnyThread::ProcessTasks() []
 LogPlayLevel: Error: 08-04 16:11:47.074 23176 23233 D UE4 : [2021.08.04-23.11.47:074][ 64]LogAndroid: Error: [Callstack] 0x00000000B7F2773C libUE4.so(0x0000000006B1D73C)!FTaskThreadAnyThread::ProcessTasksUntilQuit(int) []
 LogPlayLevel: Error: 08-04 16:11:47.074 23176 23233 D UE4 : [2021.08.04-23.11.47:074][ 64]LogAndroid: Error: [Callstack] 0x00000000B7F27514 libUE4.so(0x0000000006B1D514)!FTaskThreadAnyThread::Run() []
 LogPlayLevel: Error: 08-04 16:11:47.074 23176 23233 D UE4 : [2021.08.04-23.11.47:074][ 64]LogAndroid: Error: [Callstack] 0x00000000B801FEB8 libUE4.so(0x0000000006C15EB8)!FRunnableThreadPThread::Run() []
 LogPlayLevel: Error: 08-04 16:11:47.074 23176 23233 D UE4 : [2021.08.04-23.11.47:074][ 64]LogAndroid: Error: [Callstack] 0x00000000B7F2541C libUE4.so(0x0000000006B1B41C)!FRunnableThreadPThread::_ThreadProc(void*) []
 LogPlayLevel: Error: 08-04 16:11:47.074 23176 23233 D UE4 : [2021.08.04-23.11.47:074][ 64]LogAndroid: Error: [Callstack] 0x00000000E9983540 libc.so(0x00000000000A5540)![Unknown]() []
 LogPlayLevel: Error: 08-04 16:11:47.074 23176 23233 D UE4 : [2021.08.04-23.11.47:074][ 64]LogAndroid: Error: [Callstack] 0x00000000E993D674 libc.so(0x000000000005F674)![Unknown]() []

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Duplicate
ComponentUE - LD & Modeling - Terrain - Landscape
Affects Versions4.26.2
Target Fix5.1
CreatedAug 4, 2021
ResolvedMay 30, 2022
UpdatedMay 31, 2022
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