Unreal Engine Issues
Unreal Engine Issues
GPU Lightmass no longer works with cascaded shadow maps
UE - Graphics Features - May 29, 2025Since Unreal Engine 5.5 stationary lights have stopped working with GPU Lightmass when using Cascaded Shadow Maps. With Virtual Shadow Maps enabled on the project, GPU Lightmass works. This issue d ...
Editor mode keyboard shortcuts active when in Play In Editor
Editor mode keyboard shortcuts active when in Play In Editor. This behavior is a departure from previous versions. It was described by the licensee as confusing and it clashes with gameplay assigne ...
'Call In Editor' events on components are not exposed in the details panel
UE - Gameplay - Mar 3, 2017Request for an Actor Components Blutility 'Call In Editor' events to be accessible from derived class. It would also be expected to see the Blutility dropdown selection and Run button in the actors ...
FDateTime instances are reset to default on hot reload
UE - Gameplay - Blueprint - May 31, 2017If an FDateTime variable is created in code and has a default value set in blueprints, any instance that is set to the blueprint default value changes to the code default on hot reload. This includ ...
PhysX Crash In Attached Project During PIE
UE - Simulation - Physics - Jul 29, 2016The user is experiencing a PhysX crash in their project. They stated that the source files contained in 4.12.5 are different from Nvidia's Github version of 3.3.4, which apparently contains a fix fo ...
Adding Megascans 3D objects to a scene can cause Twinmotion to freeze and Crash on macOS.
TM - Core - Dec 11, 2024Looking at the logs when it happened, the logs are spammed with the following: [2024.12.10-20.34.12:438][514]LogZenServiceInstance: Display: Unreal Zen Storage Server HTTP service at [::1]:8658 sta ...
Editor sometimes crashes when trying to compile an Animation Blueprint that extends a class with AnimInstanceProxy
UE - Anim - Runtime - Anim Blueprints - Jan 10, 2023Reproduced 3/3 times, issue does not occur in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed Regression. Seems to work fine when compiled once, but after the 2nd or 3rd time it crashes. ...
Child widgets do not maintain the Enhanced Input bindings from their parents
UE - Gameplay - Input - Apr 9, 2025When a widget blueprint is created with Enhanced Input bindings in the event graph, when it is subclassed those bindings will not work in the child. This is inconsistent with how Actors function, an ...
Live Link Face Connection Could Not Be Established in UE5 with MetaHuman Exported Directly From UE Quixel Asset Browser
UE - Virtual Production - IO - LiveLink - Apr 6, 2022Occurs 5/5 times. A Facial LiveLink could not be established between the MH Facial Anim BP and the LiveLink iOS app using //UE5/Release-5.0 EGL Live. Regression occurs: When tested in UE5EA a Live ...
Widget Blueprints Fail to Compile When Copying Collapsed Graphs into Functions
UE - Gameplay - Blueprint - Jun 28, 2022Collapsed blueprint nodes that are copied and pasted into a function graph of a Widget will cause a fatal error when the blueprint compiles, as seen in the callstack, and will provide the message: " ...