Unreal Engine Issues
Unreal Engine Issues
Landscape Mountains Content Is Bugged When Updating Engine Version (P_BirdsClose_Circling)
UE - Graphics Features - Sep 30, 2016When updating the P_BirdsClose_Circling to a new engine version (4.12.5 or higher) the particle system breaks. ...
XR -ARKit - Tracked Planes are not attached to the real world objects when moving the camera around
UE - Platform - XR - May 22, 2024When the user attempts to place an object on a tracked plane it slides around the environment not staying in the expected place. Using the ARDebugcheck project with the show planes option you can se ...
Map placed actor binding to another actor's Event Dispatcher (multicast delegate) results in duplicate bindings after blueprint recompile
UE - Framework - Blueprint - Apr 17, 2025Context Blueprint actors placed on the map can bind to another actor's event. If an ActorB has a reference to ActorA, it can bind to an event dispatcher in A by creating an event node in ActorB's e ...
Translucent Dbuffer Decals not Rendering in Material Editor Preview Window
UE - Rendering Architecture - Materials - Sep 30, 2016Dbuffer decals with a Translucent Blend Mode are not rendering in the preview window of the Material Editor. Note I noticed the Default Blend Mode for Dbuffer Decals is set to Translucent now inste ...
Adding ProceduralMeshComponent Class to a project prevents the code from compiling
UE - Gameplay - Aug 5, 2016After adding a classed based on ProceduralMeshComponent the code for the project does not compile any longer. **This is a Regression - Adding ProceduralMeshComponent class would compile successfull ...
Decals custom depth/stencil side effect from Lumen
UE - Graphics Features - Oct 15, 2024The order of passes related to Decal rendering (without the DBuffer) and CustomDepth is changed by the CVar "r.Lumen.AsyncCompute", even when Lumen is not enabled. This causes Decal Materials that ...
Certain dropdowns in the Menu Bar are missing sections on Mac when expanded
UE - Platform - Apple - Apr 25, 2017This only affects certain dropdowns and only occurs when the editor is open. Also occurs in 4.15.2 This has been seen on the following macs:AMD R9 M395 iMac running Sierra 10.12.5 ...
SetActorEnableCollision does not affect Destructible meshes
UE - Simulation - Physics - Destruction - Jan 4, 2016Setting the SetActorEnableCollision blueprint node to false does not disable collision for a destructible mesh. Workaround: Adding a static Mesh component and setting any mesh will cause the collis ...
Renaming engine folder causes GenerateProjectFiles to fail on Mac
UE - Platform - Apple - Jul 11, 2016When running GenerateProjectFiles.command on Mac from a folder with a space in the nam, the folder structure is read incorrectly. This leads to the .command file failing when trying to set up Mono ...
Using Certain Names in Blueprint Math Expression Causes Compiler Error
UE - Gameplay - Blueprint - Aug 8, 2016Entering a value such as x1-x0 into a math expression node is causing a compiler error in blueprints. This is inconsistent with the behavior in 4.12.5, when entering the same expression would cause ...