Crash: Opening Project Browser from Launcher with VR Mode auto-entry enabled with HMD active (worn)

UE - Editor - Workflow Systems - Apr 24, 2017

If you enable VR Mode auto entry, close the project, and then attempt to launch the engine again from the Binary launcher while the HMD is active (being Worn), the Project Browser will crash ...

[CrashReport] UE4Editor-Engine!FDDSLoadHelper::IsValidCubemapTexture() [DDSLoader.cpp:158]

UE - Graphics Features - Dec 2, 2019

Generated from CrashReporter ...

Attempting to set skeletal mesh on vehicle blueprint during PIE crashes editor

UE - Simulation - Physics - Feb 8, 2016

Switching the skeletal mesh of an actor during PIE crashes the editor. Frequency: 5/5 Crashreporter: N/A ...

Crash Occurs When One Morph Target is Deleted and Another is Adjusted Afterward

UE - Graphics Features - Feb 26, 2018

Engine crashes when a morph target on an asset that has multiple morph targets is deleted and then another morph is adjusted afterwards Notes: Asset came from an older Jira where this same issue o ...

Assert when adding geometry cache asset as a component to a blueprint actor

UE - Editor - Content Pipeline - Import and Export - Mar 24, 2021

When adding an asset directly to a blueprint, it is not in the streaming components, so the assertion fails when setting the geometry cache. ...

Animation System relies on FindFunctionByName which is not thread safe.

OLD - Anim - Mar 29, 2017

Currently, there are several places in FAnimInstanceProxy and FAnimNode_Base (and derived classes) that rely on FindFunctionByName in order to resolve transitions, evaluate pins, etc. This can happ ...

Editor Crashes When Using Set Replicates in the Construction Script

UE - Networking - Mar 1, 2016

When spawning an actor using the Spawn Actor From Class node that has a Set Replicates node in the construction script, the editor crashes upon attempting to run a dedicated server with 2 players. ...

Crash accessing USplineComponent from Niagara while it is being updated on game thread

UE - Niagara - Aug 13, 2020

I was working with a licensee on something unrelated, and ran into this niagara threading crash. It looks like UNiagaraDataInterfaceSpline::SampleSplinePositionByUnitDistance on one of the niagara h ...

MoviePipeline: HighRes Tiling feature crashes at high resolutions

UE - Anim - Sequencer - MRQ - Jan 4, 2023

If you run with -rdgimmediate -onethread you can get the callstack that indicates that MRQ is still attempting to allocate the full sized texture and not the individual tile size. ...

Crash in FObjectReplicator::StartReplicating when removing replicated uproperty and hot reloading with two players

UE - Networking - May 10, 2016

The editor crashes when the user removes the replicated uproperty from a variable and tries to hot reload while a PIE session with two players is still active. This issue was found while trying to ...