Unreal Engine Issues
Unreal Engine Issues
Generate Project files does not add Intellisense include paths for .generated.h files
UE - Foundation - Cpp Tools - UnrealHeaderTool - Jul 23, 2018Attempting to open a .generated.h file using intellisense results in an error due to the file not being found as the proper search file paths were not added when generating the project files. Pleas ...
ARKit GetCurrentFrame crashes app
UE - Platform - XR - Aug 22, 2018Using "GetCurrentFrame" crashes app. "The crash is due to the default constructor of FAppleARKitFrame being called by the above mentioned blueprint function. That constructor fails to initialize fi ...
Uniform scaling in the viewport not working as expected when additive mode is enabled
UE - Editor - Workflow Systems - Apr 2, 2022The uniform scaling does not work as expected Repro Steps: 1) Add a cube to a level 2) Set the scale (X = 16, Y=9, Z=9) 3) Click the Lock icon to activate the Uniform Scale feature 4) In the viewpor ...
Landscape nanite height mismatch
UE - Graphics Tools - Terrain - Landscape - Oct 17, 2023From licensee: The height of Nanite rendered landscape does not match the height of non-nanite landscape. The error gets worse if you increase the Z Scale of the landscape actor. Our project rec ...
Editor Freezes after the user attempts to set a NewSpriteAtlasGroup to an imported sprite
UE - Gameplay - Paper2D - Apr 19, 2023By setting an Atlas Group to a newly created sprite, the editor freezes. This feature is most important, even if this issue can only be reproduced by a minority of users. Repro rate: 5/5 Notes:No ...
[Mootools Bug] SKP Import - Applied texture maps from previous Twinmotion versions are lost after reimport in TM 2025.1.1
TM - Interoperability - May 8, 2025Reported in SF [Link Removed] For SKP imports that were added to a file in a previous version of Twinmotion, when the .tm file is concerted to and opened in TM 2025.1.1, if the SKP model is re-impo ...
Structure variables in Child Blueprints do not maintain the default values set in their Parent Blueprints
UE - Gameplay - Blueprint - Jan 12, 2015Values changed to an inherited Struct variable in a Child Blueprint will be kept after compile, but any not changed will be set to 0s. ...
[CrashReport] UE4Editor_DetailCustomizations!`FBrushDetails::CustomizeDetails'::`2'::Local::OnClassPicked() [brushdetails.cpp:172]
Tools - Aug 29, 2017This is a common crash that has occurred since at least 4.15 and affected more than 100 users. The callstack shares some similarities to [Link Removed], which was not resolved. User DescriptionsGo ...
It's possible to create a locked state on a rigidbody by creating a TransientField that will keep the rigdbody Sleeping even after it leaves the Field's area of influence
UE - Simulation - Visual - Sep 5, 2024The licensee found a way to lock the state of a rigidbody as PBDRigid->ObjectState() == EObjectStateType::Sleeping by subjecting it to a particular transient field composed of a RadialFalloff and a ...
Switching modular control rig to FK mode breaks pose of controls that have been baked to rig
UE - Anim - Rigging - Control Rig - Sep 14, 2025From the licensee:We have built a modular Control Rig in Unreal 5.6, and while IK to FK matching works correctly inthe rig, but we are facing an issue when applying mocap animation to the characters ...