Unreal Engine Issues
Unreal Engine Issues
geometry script AppendSimpleSweptPolygon can crash if called with empty path
UE - Graphics Tools - Modeling Tools - Apr 26, 2022geometry script "Append Simple Swept Polygon" crashes if called w/ an empty path (but non-empty cross section polygon) ...
Crash on opening a pose asset after reloading a skeletalMesh with bone name changes
OLD - Anim - Nov 6, 2017Opening an old pose asset can crash the editor if the skeleton it uses gets updated. ...
Crash having select foliage mode enabled and clicking in the viewport while simulating
UE - LD & Modeling - Terrain - Landscape - Jan 24, 2018The Foliage tab is disabled while simulating in the viewport, however if the user has the Foliage Select mode enable when they simulate and click on a foliage instance in the viewport it will crash. ...
Crash When Adding a Second Vector Parameter to Material Parameter Collection
UE - Graphics Features - Feb 21, 2019The Editor will crash if you add more than one vector parameter to a Material Parameter Collection. This works as expected in 4.21 CL# 4753647 Found in 4.22 Preview 2 CL# 5035897 and 4.23 CL# 506 ...
Crash w. 'Serialized Class LinkerPlaceholderExportObject for a property of BlueprintGeneratedClass'
UE - Gameplay - Blueprint - Sep 25, 2017I was attempting to repro [Link Removed]. I created a new Actor BP, placed it in the level, added a ref to it to the level BP (instead of the projectile approach in the repro), and tried to save my ...
Crash when mousing over array parameter in Blueprint function graph while debugging
UE - Gameplay - Blueprint Editor - Mar 3, 2020Mousing over an array input inside a Blueprint function can lead to a crash. For this to occur, the first parameter of the function must be a User Defined Struct. ...
Crash accessing USplineComponent from Niagara while it is being updated on game thread
UE - Niagara - Aug 13, 2020I 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 ...
Editor crash when shader debugging enabled including r.shaders.optimize=0
UE - Rendering Architecture - Shaders - Jun 23, 2024The editor crashes when activating cvar options for shader compilation and debugging. ...
Crash on Event Begin Play with UMG Widget and 2 or More Players
UE - Editor - UI Systems - Feb 25, 2015A player with UMG widget created on BeginPlay works fine when hitting play with only 1 player, but if you set the number of player > 1 it will crash. User believes this is somewhere related with t ...
[CrashReport] Mac crash in UE4Editor-Engine.dylib!LoadPhysXModules()::$_0::operator()()
UE - Platform - Apple - Jun 8, 2017This is a common Mac crash that has been occurring since 4.15. It shares the same callstack with [Link Removed], but that was verified fixed for 4.16.0, while this crash still continues into 4.16. ...