Inconsistent Prioritization of Navigation Modifiers

UE - AI - Dec 12, 2016

When working with Nav Modifiers in a level that contains objects that have a custom Nav Area class, the prioritization of the modifiers is not consistent. If you notice in the attached project, so ...

Sharing Material shaders wastes memory and disappears from the memreport

UE - Graphics Features - Jul 18, 2019

Enabling bShareMaterialShaderCode breaks memory tracking and wastes memory due to issues in ShaderCodeLibrary. It is also worth noting that after cooking with bShareMaterialShaderCode enabled causes ...

The DemoRec console command crashes the editor if used during PIE

UE - Networking - Aug 5, 2015

The DemoRec console command crashes the editor if used during PIE. Reproduced in 4.9 Preview 2 binary and 4.9 Releases (//depot/UE4-Releases/4.9/Promotable-CL-2643093). Does NOT occur in 4.8.3 bina ...

[CrashReport] Tutorial crash UObject::execLetValueOnPersistentFrame()

UE - Gameplay - Blueprint - Jul 7, 2017

This is another Tutorial crash that shares a similar callstack with [Link Removed] and [Link Removed], but those specific repro steps have been fixed while this one is still occurring in 4.16.2. On ...

Crash using Custom HLSL Node with Empty Shader Directory

UE - Graphics Features - Jul 13, 2017

A crash is occurring when adding an empty shader directory when using the custom node within the material editor. This crash is preventing some users from opening their projects that use this workfl ...

Upgrading project results in loss of game input

UE - Gameplay - Input - Jan 7, 2020

Upgrading a marketplace creator's project to engine version 4.23.1 and above results in loss of (previously) working functionality with game input. ProjectDownload: [Link Removed] Tested in: 4.2 ...

[CrashReport] UE4Editor_Engine!FBaseBlendedCurve<FAnimStackAllocator>::InitFrom() [animcurvetypes.h:364]

OLD - Anim - Jul 5, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Source Context: 349 } 350 351 ...

Editing the value of an Array Variable in an Actor Component's bp Details panel will collapse the expanded array

UE - Gameplay - Blueprint - Mar 27, 2015

Editing the value of an Array Variable in an Actor Component's bp Details panel will collapse the expanded array. Found in 4.7.3 but also reproducible in Main 2491982. Another user reporting the i ...

Landscape Components No Longer Editable after Undoing Component Deletion

UE - LD & Modeling - Terrain - Landscape - Oct 20, 2015

When working in Manage Mode with Landscapes and deleting a component, if you undo the deletion, you can no longer modify or select the component. I did attempt to rebuild the scenes lighting and ge ...

Timelines are displayed as [Unamed TimelineComponent] in the Details view

UE - Gameplay - Blueprint - Mar 24, 2015

Timelines are displayed as [Unamed TimelineComponent] in the Details view. Renaming the Timeline in the Blueprint has no effect. Reproduced in 4.7.3 binary and Main (//depot/UE4/Promotable-CL-24874 ...