Unreal Engine Issues
Unreal Engine Issues
OnTextChanged not called for UEditableTextBox / UMultiLineEditableTextBox when text is set programmatically
UE - Editor - UI Systems - Sep 29, 2025When calling SetText() on a UEditableTextBox or UMultiLineEditableTextBox, the OnTextChanged delegate is not triggered. This regression was first reported in UE 5.3 and acknowledged previously in UD ...
Using the Execute Console Command node to run demoplay causes the editor crash/freeze
UE - Networking - Nov 13, 2015This bug has different behavior throughout the 4 different versions listed. 4.8.3 - Gives an assert 4.9.2 & 4.10 - Gives a fatal error crash 4.11 (Main) - Freezes the editor without a crash report ...
Mouse is captured when starting PiE, but PiE viewport is not focused
Tools - Mar 29, 2016Enviroment: Windows 7 Professional SP1 64-bit Intel(R) Xeon(R) CPU E5-2643 v3 @ 3.40GHz 64GB Ram NVidia GTX 980 (Driver version: 364.51 ) DirectX 11 Behavior in 4.10: The mouse is not captured/focu ...
Skeletal Meshes with Physics assets with less than 5 bodies will not use flag for Start Awake
UE - Simulation - Physics - Dec 8, 2015When using a Physics Asset with 4 or less physics bodies the flag for Start Awake cannot be disabled, even if unchecked, when Simulate Physics is set to true. I've attached a project with assets f ...
Modulated Shadows on IOS cause flickering on Skeletal Meshes
UE - Platform - Mobile - Feb 10, 2016Modulated shadows are not functioning properly on IOS devices for skeletal meshes. Any skeletal meshes in the scene will cast a shadow, but have a flickering modulated shadow on the skeletal mesh as ...
Packaging a runtime plugin in a Blueprint project causes some Editor files to be deleted
UE - Foundation - Cpp Tools - Oct 22, 2018Attempting to package a runtime plugin (does not occur with a Development plugin) in a Blueprint project fails in 4.21 Preview 2. This also causes some Editor files to be deleted, including the Modu ...
Simulating physics overrides the ability to move Skeletal Mesh Actors in Editor after moving a child component
UE - Simulation - Physics - Jun 18, 2019Found in 4.22 CL#6574378 Reproduced in 4.21 CL#4753647, 4.24 Main CL#7062442 May be similar to [Link Removed], which was reported fixed in 4.13 The following warning is spammed when trying to mov ...
Duplicating functions doesn't reset the GUIDs of local variables.
UE - Gameplay - Jun 15, 2023This is actually a bug with function duplication via UEdGraphSchema_K2::DuplicateGraph. After a function graph is duplicated, the function entry node still retains the same GUIDs for its local vari ...
HLOD fading reset after view reset
UE - World Creation - Worldbuilding Tools - HLOD - Jan 24, 2024From licensee:When the player pawn teleports inside a structure that is a HLOD, the dithered HLOD fading transition is not properly reset so we can see it re-starting to fade, from the inside. Our ...
Translucent Surface Material and Additive Particles not rendering on Metal in Shipping/Distribution
UE - Platform - Mobile - Oct 22, 2015Certain Translucent Materials with Surface Lighting Models and Additive Material based Particle Systems will not render in Shipping/Distribution configuration using Metal Rendering on an iPhone 6*. ...