Unreal Engine Issues
Unreal Engine Issues
Assertion failed: !EditReregisterContexts.Find(this)
UE - Gameplay - Jun 22, 2015Editor crashes if a blueprint has "Can Ever Affect Navigation" changed multiple times and is compiled. Crash link: [Link Removed] Frequency: 4/4 ...
World Position Offset causing Cracks in Meshes on certain iOS Devices
UE - Platform - Mobile - May 24, 2017When using World Position Offset and pushing verts of a mesh, cracks appear on the surface using WPO when deployed to an certain iOS devices. I used the Mobile Previewer to compare results to how t ...
FDateTime is not correctly formatted by As Date Time when using any dates before January 1st, 1970
UE - Editor - UI Systems - Localization - Mar 30, 2015FDateTime is not correctly formatted by As Date Time when using any dates before January 1st, 1970. From a conversation on Slack with MaxP: this is probably an underflow the ICU based string format ...
Audio Memory Growth While Paused
UE - Audio - Feb 26, 2026User has provided a trace file attached to case. User experiencing going out of memory during gameplay with console command "Pause" activated. Using 5.6 from Perforce in the Release-5.6.0 stream at ...
Crash in FUniformExpressionSet::FillUniformBuffer trying access deleted UTextureCollection
UE - Rendering - Architecture - May 30, 2025Crash in FUniformExpressionSet::FillUniformBuffer trying access deleted UTextureCollection (Experimental in 5.6). The licensee describes their crash, their analysis, and a proposed fix: This crash ...
Crash Upon Opening Project in 4.7 preview 5
UE - Foundation - Core - Feb 4, 2015The user claims to have converted his project with each new version of the engine starting from 4.2. Comments left in crash reporter "Tried to open project" Creating bug for tracking purposes unti ...
Ray traced ambient occlusion is affected by exposure when export from sequencer
UE - Anim - Sequencer - Jul 29, 2020Camera viewport hotkeys shouldn't affect Sequencer timeline when the viewport is focused
UE - Anim - Sequencer - Dec 17, 2020When Mobile Deferred Shading, the DBuffer Decal is affected by metallic value
UE - Platform - Mobile - Jul 22, 2021Use Deferred Shading (r.Mobile.ShadingPath=1) Enable DBuffer Decal All Lights’s mobility is Static Decal Material settings : Material Domain - Deferred DecalBlend Mode - TranslucentDecal Blend Mo ...
SceneCapture2d affects Niagara GPU particles with translucency sorting enabled
UE - Niagara - May 11, 2021The issue comes from sorting being abled while having a scene capture actor. The enclosed 7z contains assets relevant to reproducing the issue. ...