Unreal Engine Issues
Unreal Engine Issues
Importing a Landscape Layer with World Composition Enabled is Taking All Available Memory
UE - LD & Modeling - Terrain - Landscape - Sep 18, 2018When importing layer information to a landscape the engine will freeze and consume all available memory. Unable to test in 4.19 due to provided project being made in 4.20. I have attached a log from ...
"Start Previewing Node" Does Not Work For Post Process Materials
UE - Graphics Features - Oct 1, 2018Using "start previewing node" in a post process material does not work. The preview will only show the final result that is connected to the material attributes. Working as expected in 4.18 CL# 38 ...
Blueprint Functions with a Parameter Named "Category" Will Change the Functions Category Back to Default
UE - Gameplay - Nov 19, 2018When creating a Blueprint Function under a non-default category, if you name one of its parameters "Category" the function will be moved back to the default category. This is working as expected in ...
[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 - Gameplay - 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 ...
Dataprep crash
UE - Editor - Content Pipeline - Visual Dataprep - Apr 16, 2025This question was created in reference to: [Link Removed] Last post fixed the import crash, but it seems it added another. If we hit Execute button twice in a row by mistake we get a crash with th ...
Moving the file location of the Editor Startup map appears to break the reference to the startup map
Tools - Nov 10, 2016Moving the file location of the Editor Startup map appears to break the reference to the startup map. The editor fails to find the map and so does not use it for the start up map. Notes: In the ...