Unreal Engine Issues
Unreal Engine Issues
GAS and single process PIE: modifiable static variables accessed by server and client
UE - Gameplay - Gameplay Ability System - Nov 16, 2022See: UAbilitySystemGlobals::HandlePreLoadMap GAS features static variables that are modified by both server and client, thus result in issues in single process PIE where they access the same memory ...
When duplicating the last point in a closed-loop spline, its metadata is inserted at the wrong index
UE - Editor - Workflow Systems - Nov 1, 2023The SplineComponentVisualizer allows users to alt+drag on a spline point to duplicate it. When this is done on the last point of a spline marked as "closed-loop", the new point is correctly added at ...
When welding collision between Third Person UE4 Mannequin's left foot ball, to left foot in physics tab results in an Engine crash.
UE - Simulation - Physics - Jan 30, 2019When using a Third Person UE4 Mannequin, Opening the Physics asset tab, and welding the collision between left foot ball, to left foot results in an Engine crash. Additional Note: Using the same ...
Blueprint CDO contains removed component from parent class
UE - Gameplay - Blueprint - Apr 28, 2015Blueprint CDO contains removed component from parent class. From the AnswerHub post: "It appears that if a component is removed from the C++ class, the CDOs for all of the blueprints remain unchang ...
Physical materials cannot be queried
UE - Rendering Architecture - Materials - Feb 12, 2015Physical materials placed on starter content shapes always return as invalid for any trace or collision query. ...
Adding Multiple Scene Components to an Actor Causes Parenting Errors
UE - Gameplay - Components - Jan 5, 2016Attempting to add multiple instances of a Scene Component that was created in code and contains a component such as a Box Collider causes the Box Colliders of each Scene Component to be parented to ...
Crash on play if a BP uses a ClearInstances node followed by an AddInstance node
UE - Graphics Features - Jul 21, 2017Crash on play if a BP manipulates a InstancedStaticMeshComponent by using a ClearInstances node followed by an AddInstance node. This is a blocker for the licensee. This is a regression: Working ...
Physics Substepping doesn't have the same effect from 4.15 to 4.16
OLD - Anim - Aug 8, 2017Physics Substepping doesn't have the same effect from 4.15 to 4.16. In 4.16+ the ponytail in the provided project will have a jitter effect even with substepping enabled. This is a regression: Work ...
[CrashReport] UE4Editor_UMG!TBaseDelegate<FMargin>::operator=() [delegatesignatureimpl.inl:381]
UE - Editor - UI Systems - Aug 29, 2017This is a longstanding and common UMG crash that has affected more than 200 users since at least the 4.15 release. User DescriptionsI was working in the UI and undid several last changes in quick s ...
Planar Reflections Cause Big Performance Hit In Packaged VR Projects
UE - Platform - XR - Jan 22, 2020Planar reflections notably lower performance in packaged VR project. Linked is an example project and an example package. [Link Removed]. This was tested on a Vive Pro and Oculus Rift(not Rift S). ...