Unreal Engine Issues
Unreal Engine Issues
Incorrect resolution used because SetProcessDpiAware() is not called when bAllowHighDPIInGameMode=False
UE - Rendering Architecture - Aug 8, 2025The incorrect resolution is used on computers with 4k monitors that use DPI scaling (default 150%) because the default for UE projects is bAllowHighDPIInGameMode=False which results in SetProcessDp ...
Sorting objects at EndLoad has a non-deterministic behavior
UE - Foundation - Core - EditorLoader - May 14, 2021This non-deterministic behavior is caused by sorting by program address. ...
Lit Translucency Receiving Shadows with Forward Shading Enabled
UE - Graphics Features - Aug 13, 2018When forward shading is enabled, particles that have materials with their lighting mode set to "VolumetricNonDirectional" will recieve shadows. Attached images provided by user. Found in 4.19 CL# ...
Assertion failed: IsValid() in AudioDeviceManager.h related to dragging and dropping cues into the viewport
UE - Audio - Feb 23, 2021I was not able to reproduce this issue with the user given repro steps, however the crash has occurred for multiple users according to Crash Reporter, so it is worth investigating more into ...
Actor foliage does not respect "foliage.CullDistanceScale"
UE - World Creation - Worldbuilding Tools - Oct 15, 2024Actor foliage does not respect the "foliage.CullDistanceScale" console variable. This was brought up in a UDN: [Link Removed] ...
Volumetric Light Fog Leak through objects
UE - Graphics Features - Dec 31, 2018Any environment with volumetric fog enabled will have a light leak which appears through objects. Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4666322 ...
Chaos : Crash when destroying part of Geometry collections clustered by AnchorField
UE - Simulation - Physics - May 10, 2021Here's a workaround void DestroyParticle(TGeometryParticleHandle<T, d>* Particle) { auto PBDRigid = Particle->CastToRigidParticle(); if(PBDRigid) { RemoveFromMapAndArray(PBDRigid, Ac ...
Problem importing broken FBX
UE - Editor - Content Pipeline - Import and Export - Nov 25, 2021An FBX exported from 3DEXCITE DELTAGEN fails to parse correctly in the latest FBX SDK and crashes the UE importer. This FBX is automatically repaired when loaded into Maya (citing "polygons with ov ...
SkeletalMesh may lose virtual bone names
This Jira is there to make sure we load the skeleton asset before the skeletalmesh asset need it ...