Unreal Engine Issues
Unreal Engine Issues
Unable to change/edit elements of Blueprint instances of Actor Component set UObject arrays
UE - Gameplay - Components - Nov 20, 2016When an array of custom UObjects is defined in an actor component class, blueprint instances of the component class cannot update the array elements. Array elements only update inside the blueprint ...
Crash Occurs on Project Load When Casting a Child Actor Component's Parent to the Parent Class
UE - Gameplay - Blueprint - Dec 5, 2016A crash is occurring on project load when attempting to use GetParentActor and cast that to a Parent class that contains a child actor component inside of that child actor component's blueprint. T ...
Nativized Packaging Fails When Delegates Have Same Output Parameters
UE - Gameplay - Blueprint Runtime - Dec 12, 2016Attempting to package a project using Nativize Blueprint Assets that contains delegates that have the same output parameters (such as binding an event to the OnCanvasRenderTargetUpdate event as show ...
"Clothing" options do not appear after importing an apx made with the 3.4 plugin
UE - Simulation - Physics - Character - Jan 13, 2017"Clothing" options do not appear after importing an apx made with the 3.4 plugin Regression: Sort of. 4.14 now uses the 3.4 version of PhysX and this only appears to happen with apx files exporte ...
Attached Project Crashing on Play When Using World Origin Rebasing with World Composition
UE - Simulation - Physics - Apr 18, 2017The editor is crashing in the attached project on PIE when World Origin Rebasing is enabled. According to the user, this did not occur in 4.13, but I was unable to test any further back than 4.15, a ...
[Input] Switching levels destroys auto-created Input Component which breaks emitUIInteraction
PixelStreaming - Feb 12, 2019We auto-create a PixelStreamingInputComponent which handles the input coming from JavaScript's emitUIInteraction. This works in a UE4 app with a single level, but it seems that if you change levels ...
Blueprint nativization fails using a map type argument as Expose on Spawn
UE - Gameplay - Blueprint - Oct 2, 2020Here's a sample blueprint [Image Removed] The lack of implementation FCustomThunkTemplates::SetMapPropertyByName causes this error.#include "Kismet/BlueprintMapLibrary.h"// The fix needs this head ...
Private functions can be overriden in the "My Blueprint" tab
UE - Framework - Blueprint Editor - Apr 29, 2022Discovered during investigation of [Link Removed]. This is happening because we are not filtering out private parent functions in SMyBlueprint::BuildOverridableFunctionsMenu. With any fix that is ...
UMovieSceneTrackInstance::GetWorld() does NOT work properly in Editor
UE - Anim - Sequencer - Mar 28, 2023UMovieSceneTrackInstance::GetWorld() returns nullptr on Editor, so user can't use any function using WorldContext and Subsystem. The following code change may fix this issue UWorld* UMovieSceneTra ...
Invalidation panels can retain stale hittest data when caching is disabled/enabled
UE - Editor - UI Systems - Slate - Aug 20, 2024Changes to the hit test grid of an invalidation panel while caching is disabled won't be respected when caching is reenabled. This can cause interactive widgets such as buttons who were set to colla ...