Unreal Engine Issues
Unreal Engine Issues
[AI] The ZoneGraph show flag is in the ZoneGraphEditor module but used during runtime in ZoneGraph module
UE - Runtime - Character - Mar 18, 2025The show flag for ZoneGraph lives in the ZoneGraphEditor module, but it is used for debugging at runtime by the main ZoneGraph module. There are protections around the type of build and some for EDI ...
Patterns On Landscape Spline Normals
UE - Graphics Tools - Terrain - Oct 31, 2025On higher-density Landscapes, Landscape Splines can lead to patterned artifacts in the geometry normals. Also tested on //UE/Release-5.6, CL:45232827 ...
Paper2D Set Sprite function in Construction requires mobility to be set to Movable
UE - Gameplay - Paper2D - Jun 23, 2015If you set up a default Sprite in an Actor BP and in the construction script set the sprite to an Editable Sprite Variable, in order for the new sprite to show up mobility of Sprite and BP must be M ...
Outside of AnimBP's, Animation Sequences with negative Rate Scales do not animate
OLD - Anim - Mar 20, 2015Animation Sequences with negative Rate Scales do not play outside of using them in Animation Blueprints...unless they are looping. UPDATE: A negative rate scale value also breaks Anim Montages. ht ...
Adjusting play speed for animation causes notifies to trigger multiple times
UE - Anim - Sequencer - May 31, 2016Adjusting play speed for animation causes notifies to trigger multiple times. Creates a stuttering effect. ...
Dynamic Translucency Resolution Not Reported Correctly
UE - Rendering - Architecture - Mar 24, 2026The dynamic translucency resolution and other dynamic resolution values were tied to the primary dynamic resolution and never updated for each type of dynamic resolution. The scaling resolution fra ...
Android.NewKeyboard CVar doesn't work
UE - Platform - Mobile - Jun 1, 2017Android.NewKeyboard cvar doesn't behave as documented. ...
Recompiling blueprint breaks Instanced class property inside child actor
UE - Framework - Blueprint Compiler - Apr 7, 2022When a blueprint class that contains an instanced property is used as the class for a child actor template, recompiling that class results in a disconnect between the instanced subobject in the blue ...
Root Motion Not Retained when Retargeting Animation Assets from UE4 to UE5
UE - ACT Character - Retargeting - Apr 12, 2022Occurs 5/5 Times RootMotion of an animation asset is not retained when retargeting Root Motion Animation asset from UE4 to UE5. ...
MS_VertexAnimationTools_MorphTargets are not deforming and reforming
UE - Graphics Features - Sep 20, 2017The Material should be contracting and expanding if it is working correctly, but after version 4.16 it is not. Instead it is solid in appearance in the material editor viewport. Below I have linked ...