Unreal Engine Issues
Unreal Engine Issues
GAS: RemoveActiveGameplayEffect crashes when called during world teardown for periodic GEs
UE - Gameplay - Gameplay Ability System - Mar 2, 2023AbilitySystemComponent crashes when RemoveActiveGameplayEffect is called during world teardown for an active gameplay effect that ticks periodically, by unsafe GetWorld()->GetTimerManager() access w ...
TranslucentVolumeAmbient is darkened in InjectTranslucencyLightingVolume pass when using VSMs with r.Shadow.Virtual.ForceOnlyVirtualShadowMaps is Off
UE - Graphics Features - Shadows - Nov 18, 2024CSM targets are still created and affect the InjectTranslucencyLightingVolume pass when moving in a project that only uses VSM causing over brightening of fog planes and other translucent meshes. r ...
Popping Ribbon UVs
UE - Niagara - Mar 10, 2025Please see the Additional Link for related UDN information. The UV popping described can be subtle, depending on settings; it's affected by spawn rate and GPU vs CPU. The popping shown in the gif t ...
Landscape cooked heightmap and Physical Material mismatch
UE - LD & Modeling - Terrain - Landscape - Jun 19, 2015Several users have reported crashes where the Heightfeild loaded from the DDC and physical material list do not match. Suggest adding the number of physical materials to part of the cooked heightma ...
Starting position of physics simulated bp is different in Standalone Game
UE - Simulation - Physics - Feb 26, 2016Starting position of physics simulated bp is different in Standalone Game User Description: Things work fine in the editor window, but when I run a standalone game then blueprints with physics bod ...
Animation Modifiers that contain a null Animation Sequence value cause the Engine to crash when applied to an Animation Sequence
OLD - Anim - Nov 14, 2018When an Animation Modifier passes a null Animation Sequence value to an Animation Sequence the Editor will crash. This is a regression from 4.20.3 (CL-4369336). This was reported and tested in 4.21 ...
Crash when a nested widget is set to "Force Slow Construction Path"
UE - Editor - UI Systems - May 25, 2018Does not occur if the root widget also disables the fast path. As a result, the current workaround is to ensure that the fast construction path is also disabled on the parent widget by making sure ...
When printing an option within an Enumeration out to the screen it does not return the correct name in stand alone
UE - Gameplay - Blueprint - May 19, 2015If a user tries to print out one of the named variables that is stored within an Enumeration blueprint then it will return something along the lines of Enumeration 0, Enumeration 1, Enumeration 2, . ...
Font Differences
UE - Editor - UI Systems - Slate - Jun 25, 2015There are some rather large differences between Freetype and Photoshop's rendering of the Fira font. You need to set your image in Photoshop to be 96 DPI. The newer version of Freetype appears to ...
Editor primitives render incorrectly in stereoscopic with instanced stereo
UE - Platform - XR - Aug 17, 2016Trigger box icons move around when oculus head movement is used. Found in //UE4/Release-Staging-4.13 @ 3090357 QA-Promotion map Edit: 08-22: This affects volumes as well as their editor icons, upd ...