Blueprint Cannot Give Niagara CPU Access To Skeletal Meshes Added From Blueprint

UE - Niagara - Apr 4, 2019

When a user tries to add a skeletal mesh component to a blueprint with a niagara system to use the skeletal mesh with that niagara system, the niagara system will stop rendering because it does not ...

Non-Struct CDO component properties display incorrectly in the property editor.

UE - Gameplay - Blueprint - Aug 17, 2016

UObjectProperty properties within a UActorComponent class aren't exposed for editing in the Details panel when choosing to edit native component defaults in the BP editor. ...

[CrashReport] UE4Editor_SlateCore!FHittestGrid::FindFocusableWidget<<lambda_3a8b364273a2882da220e6e492096c17>,<lambda_d0075a811a928600995d1b2de6795365>,<lambda_105424556dbaeebf7f5bf9bed3e2f737> >() [hittestgrid.cpp:397]

UE - Editor - UI Systems - Jun 18, 2018

No user comments in crash group 394 for (StrideCellPoint[StrideAxis] = StrideAxisMin; StrideCellPoint[StrideAxis] <= StrideAxisMax; ++StrideCellPoint[StrideAxis]) 395 { 396 ** ...

Hot Reload crash on PIE with custom AIController and Perception Component

UE - AI - Sep 29, 2015

If a pawn in the level is using a custom AI Controller that sets the AIPerceptionComponent in code, the editor will crash on PIE after a hot reload. CrashReporter: [Link Removed] ...

StartCameraFade() breaks on mobile projects after editor is closed/reopened

UE - Platform - Mobile - Oct 6, 2015

If a project that is set to Mobile/Tablet and Scalable 3D or 2D uses StartCameraFade() to produce a fade in effect, the effect will not play in PIE if the editor is closed/reopened. ...

Instanced object in an array property of an actor component is invalidated and marked for garbage collection on undo

UE - Gameplay - Jun 4, 2024

If an actor component contains a TArray of instanced objects, some of those object instances can get incorrectly invalidated and marked for garbage collection in certain situations, possibly resulti ...

Values are not copied for a EnumArray that is part of an exposed Struct Variable

UE - Gameplay - Blueprint - Jun 21, 2016

Values are not copied for a EnumArray that is part of an exposed Struct Variable; when copying from the Details panel to a copy of the same actor. User Description: If you make an array of custom ...

Crash occurs if the Recast Navmesh is set to Dynamic and the BehaviorTree runs a 'Does Path Exist' decorator

UE - AI - Jun 16, 2015

Crash occurs if the Recast Navmesh is set to Dynamic and the BehaviorTree runs a 'Does Path Exist' decorator. Crashreporter info: [Link Removed] ...

[CrashReport] GPU Hang on Linux - /usr/lib/nvidia-381/libGLX_nvidia.so.0

UE - Platform - Linux - Aug 16, 2017

This is a trending GPU hang crash on Linux in 4.16 and 4.17. It is similar to [Link Removed] (nvidia-375) ...

Mesh painting on staticmesh doesn't always apply Colors to All LODs

UE - Editor - Content Pipeline - Asset Build - Apr 18, 2022

See the video [Link Removed] ...