Unreal Engine Issues
Unreal Engine Issues
'Directions are not Compatible' error on ForEachLoopWithBreak if split struct pin is disconnected from Enum type
UE - Gameplay - Blueprint - Mar 25, 2015'Directions are not Compatible' error on ForEachLoopWithBreak if split struct pin is disconnected from Enum type. Note: If the pins are reconstructed and the resplit, the error is fixed. ...
Atmospheric Fog cannot be toggled to hidden in the Scene Capture 2D's detail settings
UE - Graphics Features - Apr 7, 2015Atmospheric Fog cannot be toggled to hidden in the Scene Capture 2D's detail settings. All other setting will toggle correctly. ...
Ensure condition failed: PrimitiveComponent tried to render with Material MaterialInstanceDynamic, which was not present in the component's GetUsedMaterials results
UE - LD & Modeling - Terrain - Landscape - Feb 22, 2017Top 10 ensure in 4.15. There was a fix submitted for [Link Removed] which was verified as following those steps to reproduce no longer causes this. ...
Crash: Direct3DDevice->CreateBuffer failed at D3D11VertexBuffer.cpp with error E_INVALIDARG
UE - Graphics Features - Jul 6, 2017This is a common crash affecting users since at least the 4.14 release. It was previously associated with [Link Removed], however that has been marked as fixed. Source Context 221 void Veri ...
ILC/VLM doesn't affect Static Staticmesh at all on Mobile
UE - Platform - Mobile - Sep 23, 2019In practice, developer wants some Static-Staticmesh actors don't build lightmaps to save iteration time as well as Memory and Package size; but still want lit by Indirect lightings ...
IOStore : Packaged game crashes when doing garbage collection right after cancelling async loading by UnloadPrimaryAssetList
UE - Foundation - Core - RuntimeLoader - Mar 15, 2021Packaged game without IOStore never hits this error. ...
NiagaraSystem is compiled every time when first loaded in the editor
UE - Niagara - May 20, 2022If you are using a large amount of Niagara, you will experience excessive load times in PIE even if nothing is changed. The following code change seems to be effective as an interim response. void ...
FKConvex::ElemCalcAABB ignoring current transform.
UE - Simulation - Physics - Apr 15, 2016FKConvexElem::CalcAABB was ignoring the elements currently defined transform, and only scaling. This means that any actor that has a transform (not just Merge Actors) could potentially have very dis ...
NDisplay hangs and stops responding on cluster event send
UE - Virtual Production - nDisplay - Nov 12, 2019"The test event is set up using the default CE port, but every time an event is sent through the launcher the display receives the input and processes it, however the launcher will "hang" and stop ...
Keep Simulation Changes will persist only a subset of changed properties
UE - Editor - Jan 10, 2025As per the steps to reproduce, Keep Simulation Changes will often only copy back the most recent property changed on a simulating Actor back to the version of the Actor in the Editor level. It is no ...