UProceduralMeshComponent::UpdateMeshSection does not call UProceduralMeshComponent::UpdateCollision

UE - Simulation - Physics - Apr 20, 2020

Updating a procedural mesh results in an incomplete collision update. Collision bounds appear to get updated properly, but collision data is not updated, despite a navigation rebuild being triggered ...

Data validation FAILED due to IWBE_Blutility containing invalid data

UE - Content - Engine - Jan 11, 2021

4.26[AssetLog] D:\Binary\UE_4.26\Engine\Content\Tutorial\InWorldBlueprintEditing\TutorialAssets\IWBE_Blutility.uasset: Default__IWBE_Blutility_C is not valid. See the MapCheck log messages for detai ...

Chaining AutomationTool Commands leads to an endless loop

UE - Foundation - Cpp Tools - Automation Tool - Nov 23, 2022

Repro Rate: 3/3 This issue was reproduced in //UE5/Release-5.1 at CL 23058290. This is confirmed to not be a regression since the error also occurs on the previous live version. This is regression ...

Hot reloading after changing custom trigger volume code causes the volume bounds to vanish

UE - Gameplay - Nov 28, 2016

When the code for a custom trigger volume is changed and a hot reload is preformed, the green bounds of the volume disappear and the volume can no longer be interacted with. The bounds do not reapp ...

Blueprint compile error can occur when trying to override a BlueprintImplementableEvent that takes a custom enum as a parameter

UE - Gameplay - Blueprint - Mar 1, 2017

When a BlueprintImplementableEvent that takes a custom enum as a parameter is overridden in a Blueprint, it will throw a compile error. The compile error states that the event cannot be overridden b ...

Instanced Static mesh does not LOD at the same screen distance as standalone mesh

UE - Graphics Features - Nov 11, 2014

DESCRIPTION: When using instanced static mesh component in a blueprint that has LODs the normal distances for LODs are not reflected for the instanced static mesh component. AH Post: https://answe ...

Refresh rate for windowed package builds causes frame stuttering

UE - Graphics Features - Aug 24, 2017

THere is an issue where the refresh rate of a windowed packaged game does not match the refresh rate of a monitor correctly, this results in stuttering. This issue does not occur in the editor (PIE) ...

Visual flicker occurs with object during play

UE - Graphics Features - Sep 5, 2017

There is an issue occurring where objects are flickering, and what appears to be jittering at set distances when rendering, increasing the bounds of the mesh pushes the distance for the issue out. T ...

Compiled MayaLiveLink plugin for Maya-2018 under Linux crashes Maya

OLD - Anim - Aug 27, 2019

User is trying to use the Maya Live Link plugin on Linux with Maya 2018. They tried to modify the MayaLiveLinkPlugin.cpp because there is no possible way to compile the plugin under linux with uintp ...

Param usage bug when using switch params

UE - Rendering Architecture - Materials - Mar 28, 2022

From the ticket: In a material instance using the attached master material if A is TRUE and B is FALSE I expect to be able to configure param C in the UI. However param C is shown only when Useswi ...