Unreal Engine Issues
Unreal Engine Issues
User Defined Struct causing crash due to accessing freed memory when using Stompmalloc
UE - Gameplay - Feb 14, 2019A licensee has reported that Custom Structs can cause a crash when using StompMalloc under certain situations. Regression?: No This occurs in 4.20 ...
Crash changing mesh paint material in blueprint, then changing to a different mode tab
Tools - Jul 11, 2016The editor crashes changing from mesh paint mode to another mode if the user has changed the material of an "Add Static Mesh Component" or "Add Spline Mesh Component" in a BP and compiled while in m ...
A crash can occur during a batched compile of inter-dependent Blueprint assets via commandlet.
UE - Gameplay - Blueprint - Feb 20, 2021Bulk compiling more than one Blueprint class asset without incurring a garbage collection pass in between each compile can result in a crash during reference replacement, as serialization may end up ...
FFrame::ReadProperty() occur crash if Blendspace Player node use Function to get BlendSpace Asset
UE - Anim - Runtime - Anim Blueprints - May 25, 2022If user connect a function that returns a Blendspace Asset to a Blendspace Player that BlendSpaceAsset settings are exposed to a pin, it crashes in the package. It does not occur if user do not con ...
[Synth][Tone Generator] - Editor crashes when Starting Synth Component Tone Generator
UE - Audio - Mar 29, 2022Starting a SynthComponentToneGenerator crashes the editor with the following assert:Assertion failed: bSuccess [File:D:\build\++UE5\Sync\Engine\Source\Runtime\SignalProcessing\Private\AudioBufferDis ...
Engine Crashes When Trying to Add an Entry to a TMap in a Nested Struct That is an Element of an Array
Tools - Oct 3, 2019When trying to add an entry to a TMap in a nested struct that is an element of an array the engine crashes. This doesn't happen if it is not an array of the nested struct. Attached are .h and .cpp ...
Crash upon attempting to load into session via Join Session in Blueprints on iOS
UE - Networking - Aug 8, 2018Joining a session on iOS using the Join Session node in Blueprints causes a crash on iOS. This is similar to [Link Removed] but was requested to be entered separately. This has not been reproduced ...
GetStaticMeshViewport() is called without checking if it returns a valid viewport causing the Editor to crash
UE - Editor - Dec 9, 2021This is not a regression. Tested in: //UE4/Release-4.27 CL18319896 Binary //UE5/Release-5.0-EarlyAccess CL16682836 Binary //UE5/Release-5.0 CL18407655 Personal P4 When opening a static mesh without ...
Adding an actor with a default property track immediately after opening a sequence will crash the editor
UE - Anim - Sequencer - Aug 14, 2020If an actor has default property tracks set up in the Project Settings, adding that actor to a level sequence through C++ will crash the editor. This seems to stem from the creation of the default p ...
Editor crashes if Timeline Play Rate node is copied/pasted in blueprints
UE - Gameplay - Blueprint - Jan 27, 2015Editor crashes when Timeline Play Rate node is copied/pasted. Frequency: 2/2 Crash Reporter: [Link Removed] Callstack: MachineId:4E82586D46B558EA69EF0EAA821297B1 EpicAccountId:1558531203f84e81 ...