Unreal Engine Issues
Unreal Engine Issues
Regression: FAnimInstanceProxy memory leak when BeginDestroy() called on UAnimInstance before USkeletalMeshComponent
UE - Anim - Runtime - Feb 10, 2025In UE 5.5, the fix applied by CL 36529858 in ue5-main updated USkeletalMeshComponent::ClearAnimScriptInstance() to call AnimScriptInstance::UninitializeAnimation() on the animation instance. This, i ...
Adding a Local Variable to a blueprint Construction Script will cause a crash
UE - Gameplay - Blueprint - Dec 18, 2014Adding a Local Variable to a blueprint Construction Script will cause a crash ...
Socket Preview Mesh's Scale Changes While the Socket's Scale Does Not When the Mesh Editor is Reopened
Tools - Dec 22, 2017When setting a preview mesh and a socket to a relative scale, the socket's scale is saved but the preview meshes scale changes. This occurs when the asset is saved < mesh editor closed out < mesh ed ...
Record Animation can start "between keys"
OLD - Anim - Feb 8, 2016A user was trying to make his recorded animation loop, but having trouble getting it to loop properly and having to eyeball it. So I did some digging and experimentation. I think that one of the m ...
Child actor components cannot be individually selected in viewport
UE - Gameplay - Blueprint - May 28, 2015If a child actor component is placed in a blueprint, that child actor component cannot be individually selected in viewport or scene outliner. ...
Unable to Rename using the Right-Click Menu on El Capitan in Blueprints and Sources Panel
UE - Platform - Apple - Apr 4, 2016Users are unable to rename a variable using the right-click menu within Blueprints, and the sources panel within the Content Browser. Regression? Yes. I tested the functionality of the right-click ...
Compile errors when passing interface array into UFUNCTION
UE - Foundation - Core - Oct 9, 2015Attempting to pass an array of interfaces into a UFUNCTION will fail at compile stating "cannot convert argument 1 from 'TArray<ElementType,FDefaultAllocator>' to 'const TArray<TScriptInterface<IInt ...
Binary-only plugins are not usable without including .build.cs files
UE - Foundation - Cpp Tools - UnrealBuildTool - Jan 22, 2015We should support not having a source directory at all, unless the plugin needs to be linked against. Related to [Link Removed]. See also: https://forums.unrealengine.com/showthread.php?53710-Prebu ...
Line Trace Does Not Register Hit On Bottom Of Landscape
UE - Simulation - Physics - Dec 15, 2016When using a line trace under a landscape it no longer registers a hit on the underside. REGRESSION? Yes Worked 4.13.2 CL 3195953 Broken 4.14.1 CL 3224400 ...
Custom Depth Post Process Stencil does not work with Material Billboard on Actors
UE - Graphics Features - Nov 27, 2017MaterialBillboardComponent does not render with CustomDepth material in PostProcessVolume as other objects do. Found in 4.16.3 CL 3561208, 4.17.2 CL 3658906, 4.18.1 CL 3454814 ...