Unreal Engine Issues
Unreal Engine Issues
Video material broken on Mac M3+ (sm6)
TM - Rendering - Oct 21, 2025On Mac devices, the video material in the viewport will display incorrectly, appearing stretched significantly. This only seems to affect the viewport and not rendered exports. ...
Using TInlineAllocator with a large number in TArray that is in an AActor class will cause child Blueprint class to call an assert while parent class will not
UE - Foundation - Core - Jul 22, 2016If a TArray has a TInlineAllocator with a large number and the class is used with a child Blueprint, the editor will throw an assert. If the base C++ Class is used instead of the Blueprint, the asse ...
Overridden custom functions have inputs locked when parent actor is altered
UE - Gameplay - Blueprint - Sep 14, 2016Overridden custom functions have inputs locked when parent actor is set to different blueprint type. Regression (no) issue (does) occur in 4.12.5 ...
dragging from wildcard array output to a node with an exec pin changes wildcard to exec variable
UE - Gameplay - Blueprint - Oct 18, 2016dragging from wildcard array output to a node with an exec pin changes wildcard to exec variable. Regression (no) issue (does) occur in 4.12.5 ...
Print string to screen is interrupted if Console Command prompt is opened and specific keys are pressed
UE - Gameplay - Blueprint - Nov 4, 2016Print string to screen is interrupted if Console Command prompt is opened and specific keys are pressed. Regression (no) issue (does) occur in 4.12.5 ...
Packaged HTML5 games are showing up in only a quarter of the screen display
UE - Platform - Mobile - Oct 14, 2016HTML5 projects, once packaged are not showing up properly in the browser window. They're about a quarter of the size they should be. This does not happen in launch on, only package. This does not h ...
[CrashReport] UE4Editor_TextureFormatDXT!FNVTTCompressor::FNVTTCompressor()
UE - Foundation - Core - Cooker - Dec 1, 2017This is a common crash that has occurred since at least 4.12. Users have not provided any descriptions of their actions when the crash occurred. The callstack is similar to [Link Removed]. ...
Rotator visual helper appears in local Presentation exports
TM - Tools - Nov 6, 2025Reported in SF [Link Removed] The Rotator animator's visual helpers will be visible in locally exported Presentations when it should be hidden. This does not affect the Translator animator. ...
Particle Effects Do Not Play in Transition Maps
UE - Graphics Features - Oct 24, 2016Particle effects do not seem to be playing in transition maps. Found in 4.13.1. Reproduced in 4.12.5 and 4.14 Preview 1. ...
Static Meshes in sublevels disappear from world content browser if they are culled out of a cull distance volume during PIE
UE - World Creation - Worldbuilding Tools - World Composition - Oct 25, 2016Cull Distance Volumes cause objects within them to disappear from the World Composition window if they are culled out at runtime. Regression (no) issue (does) occur in 4.12.5 ...