Unreal Engine Issues
Unreal Engine Issues
Engine Hangs after Exiting Standalone Mode
UE - Graphics Features - Dec 1, 2016Users are reporting hangs after exiting Standalone or other various windows launched through the editor. The resolution has already been found, but I am reporting for transparency. Note In order t ...
FPS Perf Regression on 980
UE - Graphics Features - Mar 17, 2015At least one user has so far reported a noticeable drop in FPS from 4.6.1 to 4.7.2 in a heavy scene; using a GTX 980. I've reproduced a perf drop in a cooked 4.7 build of elemental demo compared to ...
Setting Standalone Window Sizes within Editor Preferences not working as Expected
Tools - Feb 24, 2016While testing the 'Shot' command for a user on the AnswerHub, I discovered the reason for the incorrect resolutions of his screenshots, was due to the fact the 'Standalone' window resolution set wit ...
LIVE: LANDSCAPE: RENDERING: Landscape smooths until edited again after saving
UE - Graphics Features - Sep 15, 2014Build: 4.4.2-2289767 Description: If a user makes changes to a landscape then saves the project, the landscape will appear smoothed until another change is made. Repro: [Reproduced Internally] 1. O ...
[CrashReport] UE4Editor_Persona!FReferenceSkeleton::FindBoneIndex() [referenceskeleton.h:252]
OLD - Anim - Jul 20, 2017This is a common crash affecting users in 4.16, and has occurred since at least 4.14, affecting more than 200 unique users. Unfortunately none of them have provided any additional information. Sou ...
[CrashReport] UE4Editor_Landscape!ULandscapeInfo::RecreateLandscapeInfo() [landscape.cpp:2128]
UE - LD & Modeling - Terrain - Landscape - Sep 28, 2017This is an early trending crash coming out of the 4.17.2 hotfix, with no record of occurring previously. The callstack is very similar to [Link Removed] (fixed in 4.17.2) and may be related. Users ...
Some Twinmotion library assets do not render in Path Tracer in files with a large number of assets
TM - Rendering - Apr 17, 2025Reported in SF [Link Removed] In scenes containing large numbers of certain Twinmotion assets, when activating Path Tracer, some of the assets will not render. The assets will render normally in St ...
Adding a scene component to a child blueprint causes log warnings to appear in output log
UE - Gameplay - Blueprint - Sep 1, 2015If a scene component is added to a child blueprint and the parent blueprint is compiled, a log warning will appear that states: "LogBlueprint:Warning: USimpleConstructionScript::FixupRootNodeParen ...
Move Directly Toward Not Working Without NavMesh
UE - AI - May 18, 2016The Move Directly Toward task does not seem to be working without a Nav Mesh in the level. Based on the tooltip "moves directly to the target without regard to any navigation system", it is expected ...
Local Vector variables in functions do not save the Y and Z values
UE - Gameplay - Blueprint - Mar 12, 2015Local Vector variables in functions do not save the Y and Z values. Possibly connected: after entering the X value, pressing Tab does not move to the Y value. Tabbing from there works as expected. ...