Unreal Engine Issues
Unreal Engine Issues
AutoCreateRefTerm does not provide a way to specify that a TArray property within a struct should have a default value created for it if none is provided
UE - Gameplay - Feb 9, 2018The current implementation of AutoCreateRefTerm does not allow for a default value to be automatically created for a TArray contained within a struct that is passed into a function as a parameter. I ...
Crash when trying to launch ShooterGame with -game
UE - Online - Jul 11, 2017Might be related to the changes in //UE4/Release-4.17 at CL 3527005. I was also able to repro this via PIE-Standalone Game in the editor. When I repro'd this with PIE-Standalone Game the Standalone ...
Regression - Nested scene component subobjects are no longer being registered when the owning scene component is added to an existing Actor instance as an instanced component.
UE - Gameplay - Components - Nov 16, 2016This is a regression that was introduced with changes made to address issues with native vs. non-native component registration at Blueprint construction time ([Link Removed]). Prior to those change ...
Editor 'Build All Levels' discards Volumetrics Lightmaps in persistent level
UE - Graphics Features - May 14, 2025Building the level or lightmaps can clear the volumetric lightmap. In 5.5, this requires you to perform a full build, or a lighting only build with a BSP brush in the scene. In 5.6, all level build ...
Crash when trying to "Update Mesh Section" on any procedural mesh just after "Clear Mesh Section" and "Create Mesh Section" for different vertices and triangles.
OLD - Anim - Jun 15, 2018the editor Crashes when trying to "Update Mesh Section" on any procedural mesh just after "Clear Mesh Section" and "Create Mesh Section" for different vertices and triangles. Found in 4.19 CL# 4033 ...
Editor not properly handling frame ranges for 60fps animations
OLD - Anim - May 21, 2015The editor does not seem to be handling frame ranges properly for 60fps animations. Say you have a 200 frame animation that spans frame 0-200. Upon import it will be 201 frames. If you set the ra ...
Editor Crashes when Isolating a Material Element on Skeletal Meshes with Ray Tracing Enabled
UE - Graphics Features - Lumen - Jul 3, 2019With ray tracing turned on, clicking on the isolate material option next to a material slot on a skeletal mesh with more than one material slot, causes the editor to crash. Found in 4.22 CL# 7053647 ...
[CrashReport] UE4Editor_Foliage!AInstancedFoliageActor::GetAllInstancesFoliageType() [instancedfoliage.cpp:2244]
UE - World Creation - Worldbuilding Tools - Foliage - Dec 1, 2017This is a common crash in the 4.18 release. User DescriptionsTried moving foliage to another sub-level. It wanted to move the foliage asset for some reason (I tried the same location - which was de ...
Crash exiting play in vr preview with -Vulkan and Oculus Rift
UE - Platform - XR - Dec 22, 2017Editor crashes after exiting a play in vr session with -Vulkan enabled Exclusive to Oculus Rift ...
Crash closing Parent and Child blueprint after renaming variable
UE - Gameplay - Blueprint - Oct 4, 2017REGRESSION Uncertain, was not able to repro in 4.17 with these steps. But I also can't repro with another version of QAGame in Binary editor. Crash occurs when the user closes a parent and child b ...