Incorrect display of NavLinks when bFailedNavLinks is enabled

UE - AI - Navigation - Oct 10, 2024

When bFailedNavLinkNavLink is enabled in RecastNavmesh, some NavLink points are debugged and others are not depending on the position of the NavLink point. In the sample project, enable bFailedNavL ...

Particle systems have frame rate dependent simulations when Min Time Between Ticks is set, and ticking is managed

UE - Niagara - Jun 11, 2019

Managed ticking when combined with Min Time Between Ticks will cause particle velocity to vary depending on frame rate. ...

Instanced Components variable not returning updated values in the construction script

UE - Gameplay - Blueprint - Jun 4, 2018

It is currently not possible to set variable values of an actor component, instanced in the level, by using the "details" pane. The Actor's construction script will only evaluate the variable defaul ...

Trace Hit.Z varies strangely based on trace start/end Z

OLD - Anim - May 8, 2017

The Z value of a trace hit will vary based on the Z value of the start/end points of the trace. The larger the start/end Z range, the larger the variance of Hit.Z values. ...

Audio volume values get reset

UE - Anim - Sequencer - Aug 9, 2017

Also confirmed in 4.22 Main @ CL 4413632 ...

InstancedStaticMeshComponent causes crash in editor compiled with ALLOW_DITHERED_LOD_FOR_INSTANCED_STATIC_MESHES set to zero

UE - Graphics Features - Nov 11, 2022

ALLOW_DITHERED_LOD_FOR_INSTANCED_STATIC_MESHES works without crashing in ue4.27. It appears that this code path is not maintained in ue5. ...

[CrashReport] Linux Crash in FActiveSound::GetWorld()

UE - Platform - Linux - Aug 11, 2017

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: SIGSEGV: invalid attempt to write ...

Capsule component renders incorrectly with non-uniform scale

UE - Simulation - Physics - Jan 30, 2025

Capsule component renders incorrectly with non-uniform scale because the render uses the minimum between the X and Y values and the collision code uses the maximum between the two. This issue is men ...