Unreal Engine Issues
Unreal Engine Issues
Connecting a Client to a Server in PIE with Auto Connect to Server disabled will crash the editor
UE - Networking - Feb 22, 2016Connecting a Client to a Server in PIE with Auto Connect to Server disabled will crash the editor. EDIT: simple test project attached. Make sure Auto Connect to Server is disabled, and PIE with 2 p ...
Duplicated bp components incorrectly double their transforms when created
UE - Gameplay - Blueprint - Jan 4, 2017Add a light to a blueprint Move it away from the origin Right click on the component and duplicate it Notice that the new light is now a child of the previous light and that its transform is now in ...
[CrashReport] UE4Editor_Engine!USkeleton::GetMeshLinkupIndex() [skeleton.cpp:420]
OLD - Anim - Jul 19, 2017This is a common crash affecting users in 4.16, unfortunately they have not provided any additional information. Source Context 406 if ( IndexPtr == NULL ) 407 { 408 L ...
Undoing the pasting of a copied node from the Blueprint Diff tools causes an access violation crash
UE - Gameplay - Blueprint Editor - Aug 24, 2017The editor crashes with an Access Violation if a node that was copied and pasted from the Blueprint Diff tools is removed via an undo. Regression?: No This issue also occurred in 4.16 Branches tes ...
Planes have a Mesh Distance field exceeds the size of the original mesh
UE - Graphics Features - Sep 20, 2017Planes have a Mesh Distance field exceeds the size of the original mesh when the value is set to 2. This behavior does not seem intended as the cube does not experience this issue when the value is ...
[CrashReport] Fatal error: Cast of nullptr to Object failed
UE - Gameplay - Oct 5, 2017This is a common and longstanding crash that has affected many users since at least 4.11. Source context not available (error in user code?). User DescriptionsI was duplicating a Set function in c ...
Editor stalls on Mac after key up, mouse up
UE - Platform - Apple - Dec 19, 2019UDN user reported a performance hit on Mac with the latest Hotfix release when the user is interacting with the editor either through keyboard or mouse input. This performance hit is noticeable whe ...
Niagara Vector Field CPU access Error prevents its use in projects
UE - Niagara - Jan 31, 2020Niagara VectorFields do not function properly since "Fix CPU Access" changes are not persistently saved. After every Editor restart or reopening projects, the Niagara-VectorField driven Emitter and ...
Chaos Clothing CreateClothActor takes a long time with LODs and Self-Collision
UE - Runtime - Simulation - Jan 21, 2024Spawning an actor with Chaos cloth causes a hitch when LODs or Self-Collision are enabled on the cloth. LODs and Self-Collision seem to compound the issue. Self-Collision requires a collision simul ...
Point light leaking throught thin geometry
UE - Rendering - Features - Oct 29, 2024In 4.27, ray traced point lights can leak through thin meshes. This bug does not exist in Unreal Engine 5, due to many of the potential rendering areas being fundamentally changed. ...