Unreal Engine Issues
Unreal Engine Issues
Foliage is removed when erasing with Erase Density set to 1
UE - World Creation - Worldbuilding Tools - Foliage - Aug 19, 2016I found with a high density of foliage instances, you're able to erase some of them even when Erase Density is set to 1.0 ...
Slate text layout AllowPerCharacterWrapping issue
Customer-reported bug in TextLayout (AllowPerCharacterWrapping): Issue seems tied to bHasTrailingText handling in TextLayout.cpp (~line 694). The remainder handling after wrap inserts an extra break ...
The command r.screenPercentage ## does not work when in VR mode
UE - Platform - XR - Jun 18, 2015Trying to set the screen percentage does not work when in VR mode. A user used an execute console command to run r.screenPercentage and it worked as expected until the user press Alt+Enter to engage ...
CreateWidget node keeps reference to created widget on output pin
UE - Gameplay - Blueprint - Oct 17, 2017There was an issue in 4.16 (fixed in CL# 3437205) in which blueprint output pins would hold on to object references until the blueprint was destroyed. It appears that an additional fix may need to b ...
FScreenSpaceData in Material Custom Expression Does Not Work in 4.19p2
UE - Graphics Features - Jan 26, 2018When creating a Post Process material in 4.19 with a Custom expression that uses FScreenSpaceData, material editor is unable to compile, and material renders incorrectly. This does not happen in 4.1 ...
ETriggerEvent::Canceled is not set when the player controller is set to "UI Only" in Enhanced Input
UE - Gameplay - Input - Apr 20, 2022From the UDN:When setting the PlayerController input mode to "UI Only", all game inputs are blocked/frozen to their current state, and release (ETriggerEvent::Canceled) is not called on them. Any in ...
Creating a function with parameter type TEnumAsByte<MyEnum> will crash while compiling
UE - Editor - Workflow Systems - Jan 11, 2022This is a regression.This does not affect UE5. Creating a function with parameter type TEnumAsByte<MyEnum> will crash while compiling. In 4.26 and UE5 the code compiles without issue, and the user ...
Skeletal Meshes with imported LODs will use the highest LOD when generating Nanite, rather than LOD0
UE - Graphics Features - Nanite - Jan 14, 2025In the SkeletalMeshBuilder, Nanite is generated when enabled regardless of the LOD being requested. Since the Nanite enablement parameter is set on all LODs in USkeletalMesh::BuildLODModel and LODs ...
[AI] Crash when gathering heightfield geometry on worker thread
UE - AI - Navigation - Jun 25, 2025From the body of the ticket: We aim to do as much of the work off the game thread as possible to avoid impacting frame rate. We've recently found a crash during collection of the geometry slices fr ...
Using World Composition with networked applications will cause sublevels to be loaded on clients and not properly replicate.
UE - World Creation - Worldbuilding Tools - World Composition - Dec 15, 2016World Composition is set up to actively manage when levels are loaded and unloaded. However, using this in network applications can cause clients to load levels instead of the server (if a client wa ...