Property won't be force synced when re-enabling replication.

UE - Networking - Mar 21, 2017

It seems like if replication is re-enabled for a given property, its state should be force synced (depending on replication conditions). Otherwise, the state will remain "out of sync" for an indeter ...

Crash in NaniteStreamManager when Nanite data fails to decode corrupt data from DDC

UE - Graphics Features - Nanite - Sep 11, 2024

If Nanite data becomes corrupt in the DDC, the Editor may crash in FStreamingManager::InstallReadyPages() when the Pending.State is FPendingPage::EState::DDC_Ready but the resulting SrcPtr is null b ...

[CrashReport] UE4Editor_UnrealEd!SaveWorld() [filehelpers.cpp:359]

Tools - Aug 31, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: !bIsReentrant [L ...

Crash attempting to open an asset from Aim Offset graph in Persona

UE - Gameplay - Oct 3, 2016

This is a regression from 4.13 ...

Mover plugin: Crash on UFloorQueryUtils::ComputeFloorDist() and other utility functions that assume the pawn uses a UCapsuleComponent

UE - Gameplay - Player Movement - Mover - Dec 4, 2025

The following functions have been found to perform unchecked casts of the pawn's "UpdatedComponent" to class UCapsuleComponent, possibly resulting in crashes:UFloorQueryUtils::ComputeFloorDist()UGro ...

Editor crashes when compiling widget blueprints when the behavior section is expanded

Tools - Nov 10, 2017

This is a trending crash coming out of the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 367 uint8* FObjectPropertyNode::GetV ...

[CrashReport] UE4Editor_Kismet!FBlueprintGlobalOptionsDetails::CanDeprecateBlueprint() [blueprintdetailscustomization.cpp:5127]

UE - Gameplay - Blueprint Editor - Jul 19, 2017

This is a common crash affecting users in 4.15 and 4.16, affecting over 200 unique users so far. User Descriptionsattempt to import bp from example Source Context 5124 { 5125 // I ...

Crash compiling blueprint referenced by Level Sequence while sequence is open

UE - Anim - Sequencer - Jul 19, 2017

Compiling a blueprint that is used in a sequence when the blueprint exists on a sublevel will cause a crash if the level sequence is currently open. ...