Users can create project with name of "Stack" which causes conflict with existing "Stack.h"

Tools - Sep 12, 2016

Users can create project with existing name of "Slack" which causes conflict with existing Slack.h. Call stack is log file. ...

[CrashReport] Mac crash - UE4Editor-Slate.dylib!FTextLayout::GetAsTextAndOffsets()

UE - Platform - Apple - Aug 15, 2017

This is a trending Mac crash in 4.17.0 that also had some occurrence in 4.16. Users have not provided any descriptions of their actions when the crash occurred, but the callstack is nearly identica ...

Internal Compile error received from rearranging Format Text nodes

UE - Gameplay - Blueprint - Dec 18, 2014

Internal Compile error received from rearranging Format Text nodes Output Log of Error: LogBlueprint:Error: [compiler] Error Internal compiler error inside CreateExecutionSchedule (site 2); please ...

[CrashReport] Linux crash - /usr/lib/nvidia-375/libGLX_nvidia.so.0()

UE - Platform - Linux - Jul 27, 2017

This is a common Linux crash that has occurred since at least 4.14. From LogLogEditorViewport: Clicking on Actor (LMB): StaticMeshActor (pared_cubos15) LogRHI: Timed out while waiting for GPU to ...

In some situations, a Blueprint can become devoid of an Event Graph. While no graphs are present, multiple variables can be created with the same name.

UE - Framework - Blueprint Editor - Aug 26, 2024

In some situations, a Blueprint can become devoid of an Event Graph, or be created without one from the start. For example, function "FKismetEditorUtilities::CreateBlueprint()" in UE 5.4 does not ca ...

Hot reload causes placed actor to lose variable references

UE - Foundation - Cpp Tools - Hot Reload - Nov 9, 2017

Preforming a hot reload causes placed actors to lose code based variable settings. More repro steps: 1. Open UE4Editor.exe 2. Create a First Person Code project 3. Build the project for Developme ...

AddOrUpdateWarpTargetFromComponent behaving incorrectly when using a SceneComponent with non-identity scale

UE - Anim - Gameplay - Jul 15, 2025

When using AddOrUpdateWarpTargetFromComponent you can pass in a SceneComponent, Relative Location and Rotation as well as optionally choosing to have the warp target follow the object if it moves.If ...

Blueprint Launches onto tvOS fail during runstep: Error_DeviceOSNewerThanSDK

UE - Platform - Mobile - Apr 19, 2019

When a user launches blueprint project to a tvOS device they will fail to run the project during the run step and if they manually try to launch the app from the dashboard. This issue does not repr ...

Local Vector variables in functions do not save the Y and Z values

UE - Gameplay - Blueprint - Mar 12, 2015

Local Vector variables in functions do not save the Y and Z values. Possibly connected: after entering the X value, pressing Tab does not move to the Y value. Tabbing from there works as expected. ...

Property Editors fail to import text values for FKeys within array/set/map containers when the key is identified by some valid non-alphanumeric characters

UE - Gameplay - Input - Oct 28, 2024

The FKey structure represents a user action input such as a keyboard key, a mouse button/wheel, or a gesture in VR. For the keyboard, it can represent any pressable key, such as letters, numbers, sy ...