Unreal Engine Issues
Unreal Engine Issues
Hot reloading after changing custom trigger volume code causes the volume bounds to vanish
UE - Gameplay - Nov 28, 2016When the code for a custom trigger volume is changed and a hot reload is preformed, the green bounds of the volume disappear and the volume can no longer be interacted with. The bounds do not reapp ...
Actor Sequence Component Not Working While Playing in Standalone
UE - Anim - Sequencer - Jun 6, 2017When using an Actor Sequence Component in an actor blueprint, the sequence will not play in Standalone. In the test, a cube was used and was increasing its scale using the sequence. When playing in ...
[CrashReport] Assertion failed: Size == CreateInfo.ResourceArray->GetResourceDataSize in d3d11vertexbuffer.cpp
UE - Graphics Features - Aug 22, 2017This is a trending crash in the 4.17 release. Users have not provided descriptions of their actions when the crash occurred. Source Context 61 // If a resource array was provided for the ...
Actor Variable References settable when in type array in Level blueprint
UE - Gameplay - Blueprint - Nov 13, 2017There is an issue with Actor Variable References that become settable when in type array in the Level blueprint. Once in the array, the actor can be successfully addressed, however using the Save Cu ...
[CrashReport] UE4Editor_Landscape!FLandscapeComponentSceneProxy::CalculateLODFromScreenSize() [landscaperender.cpp:1522]
UE - LD & Modeling - Terrain - Landscape - Mar 27, 2018No user comments in crash group 1511 if (PreferedLOD >= 0.0f) 1512 { 1513 PreferedLOD = FMath::Clamp<int32>(PreferedLOD, FMath::Max((float)FirstLOD, MinValidLOD), FMath::Mi ...
Unable to delete levels with Particles in them
UE - Gameplay - Oct 9, 2019The engine is unable to Level that has a Blueprint actor with a child actor component that has a particle system component. The follow message pops up: World /Game/LevelName.LevelName is in use. — ...
Instances In a Hierarchical Instance Static Mesh Component Don't Retain PerInstanceRandom Values When Rotated
UE - Graphics Features - Dec 9, 2019When an instance in a Hierarchical Instance Static Mesh component is rotated using "Update Instance Transform" it doesn't retain it's material's base color value when the material uses PerInstanceRa ...
Network Emulation outgoing dropped packets on client higher than expected
UE - Networking - Oct 14, 2022Under certain network emulation settings, it looks like outgoing packets from the client will be dropped in groups (around 4 or more packets at a time) rather than individually. This leads to the ac ...
SetOneWayInteraction functionality has no effect on the simulation
UE - Simulation - Physics - Nov 11, 2022Calling SetOneWayInteraction on a BodyInstance has no effect within the physics engine. The state of the flag is passed in to Chaos but nothing actually uses the value once it is there. It is expe ...
[Interchange] Crash on asset re-import
UE - Editor - Content Pipeline - Import and Export - Feb 7, 2025We've started seeing a crash in editor when re-importing one of our assets. <pre class="ql-syntax">Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 783] Array index out of ...