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[4.18.2] Engine Crash when second player join level in PIE. RepLayout.cpp [Line: 2975]

When a second player join a session it always crash.

[2018.01.12-16.51.02:196][801]LogWindows: Error: === Critical error: === [2018.01.12-16.51.02:196][801]LogWindows: Error: [2018.01.12-16.51.02:196][801]LogWindows: Error: Assertion failed: Property->PropertyFlags & CPF_Net

[File:D:\Build\++UE4+Release-4.18+Compile\Sync\Engine\Source\Runtime\Engine\Private\RepLayout.cpp] [Line: 2975]

[2018.01.12-16.51.02:196][801]LogWindows: Error: [2018.01.12-16.51.02:196][801]LogWindows: Error: [2018.01.12-16.51.02:196][801]LogWindows: Error: [2018.01.12-16.51.02:196][801]LogWindows: Error: [Callstack] 0x00000000E9BC9D98 KERNELBASE.dll!UnknownFunction [] [2018.01.12-16.51.02:196][801]LogWindows: Error: [Callstack] 0x00000000CCB176D4 UE4Editor-ApplicationCore.dll!UnknownFunction [] [2018.01.12-16.51.02:196][801]LogWindows: Error: [Callstack] 0x00000000C191330B UE4Editor-Core.dll!UnknownFunction [] [2018.01.12-16.51.02:196][801]LogWindows: Error: [Callstack] 0x00000000C18A47F9 UE4Editor-Core.dll!UnknownFunction [] [2018.01.12-16.51.02:196][801]LogWindows: Error: [Callstack] 0x00000000ACB90A4E UE4Editor-Engine.dll!UnknownFunction [] [2018.01.12-16.51.02:196][801]LogWindows: Error: [Callstack] 0x00000000AC8D9349 UE4Editor-Engine.dll!UnknownFunction [] [2018.01.12-16.51.02:196][801]LogWindows: Error: [Callstack] 0x00000000AC8D27A5 UE4Editor-Engine.dll!UnknownFunction [] [2018.01.12-16.51.02:196][801]LogWindows: Error: [Callstack] 0x00000000ABDF0CFD UE4Editor-Engine.dll!UnknownFunction [] [2018.01.12-16.51.02:196][801]LogWindows: Error: [Callstack] 0x00000000AC903CFC UE4Editor-Engine.dll!UnknownFunction [] [2018.01.12-16.51.02:196][801]LogWindows: Error: [Callstack] 0x00000000AC9019E6 UE4Editor-Engine.dll!UnknownFunction [] [2018.01.12-16.51.02:196][801]LogWindows: Error: [Callstack] 0x00000000AC90B4F5 UE4Editor-Engine.dll!UnknownFunction [] [2018.01.12-16.51.02:196][801]LogWindows: Error: [Callstack] 0x00000000AC8D065F UE4Editor-Engine.dll!UnknownFunction [] [2018.01.12-16.51.02:197][801]LogWindows: Error: [Callstack] 0x00000000ABD2CF78 UE4Editor-Engine.dll!UnknownFunction [] [2018.01.12-16.51.02:197][801]LogWindows: Error: [Callstack] 0x00000000AC77858D UE4Editor-Engine.dll!UnknownFunction [] [2018.01.12-16.51.02:197][801]LogWindows: Error: [Callstack] 0x00000000AA956BA6 UE4Editor-UnrealEd.dll!UnknownFunction [] [2018.01.12-16.51.02:197][801]LogWindows: Error: [Callstack] 0x00000000AB204AC6 UE4Editor-UnrealEd.dll!UnknownFunction [] [2018.01.12-16.51.02:197][801]LogWindows: Error: [Callstack] 0x00000000E0955A26 UE4Editor.exe!UnknownFunction [] [2018.01.12-16.51.02:197][801]LogWindows: Error: [Callstack] 0x00000000E0965430 UE4Editor.exe!UnknownFunction [] [2018.01.12-16.51.02:197][801]LogWindows: Error: [Callstack] 0x00000000E09654AA UE4Editor.exe!UnknownFunction [] [2018.01.12-16.51.02:197][801]LogWindows: Error: [Callstack] 0x00000000E0972379 UE4Editor.exe!UnknownFunction [] [2018.01.12-16.51.02:197][801]LogWindows: Error: [Callstack] 0x00000000E0973D57 UE4Editor.exe!UnknownFunction [] [2018.01.12-16.51.02:197][801]LogWindows: Error: [Callstack] 0x00000000ED312774 KERNEL32.DLL!UnknownFunction [] [2018.01.12-16.51.02:197][801]LogWindows: Error: [Callstack] 0x00000000ED420D51 ntdll.dll!UnknownFunction [] [2018.01.12-16.51.02:197][801]LogWindows: Error: [Callstack] 0x00000000ED420D51 ntdll.dll!UnknownFunction [] [2018.01.12-16.51.02:197][801]LogWindows: Error: [2018.01.12-16.51.02:219][801]LogExit: Executing StaticShutdownAfterError [2018.01.12-16.51.02:232][801]LogWindows: FPlatformMisc::RequestExit(1) [2018.01.12-16.51.02:232][801]Log file closed, 01/12/18 14:51:02


Product Version: UE 4.18
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asked Jan 12 '18 at 05:08 PM in Bug Reports

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19 4 4

avatar image HeliaXDemoN Jan 12 '18 at 05:26 PM

We checked in other computer that still have 4.18.1 and the crash don't happens.

avatar image Sean L ♦♦ STAFF Jan 12 '18 at 06:16 PM


We've recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.



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