Unreal Engine Issues
Unreal Engine Issues
Pathtracer - Odd results from any material adjusting normals to complement world position changes
UE - Graphics Features - Path Tracer - Sep 30, 2025Someone on the forums is reporting a possible bug with Pathtracer and any material that adjusts normals to complement world position changes. See pic attached. Reporting forum thread:https://foru ...
Crash When Opening a DataTable Based Off a Struct With a Timecode Variable
UE - Anim - Sequencer - Mar 30, 2020When a datatable is based off a struct with a timecode variable it will crash when opening. Found in 4.24.3 CL#11590370 Reproduced in 4.23.1 CL#9631420, 4.25 Preview 4 CL#12366721, 4.26 CL#12123513 ...
MAC: UE4 Editor crashes in gldReadTextureData on Nvidia 330M
UE - Platform - Apple - Dec 15, 2014A user is reporting semi-regular crashes on his MBP 6,2, with Nvidia 330M GPU. This is a GL 3.3 GPU which we don't routinely test against, he may have the 256 or 512MB model, but this is unclear. T ...
[CrashReport] UE4Editor_Core!FModuleManager::UnloadModule() [modulemanager.cpp:557]
UE - Foundation - Core - Feb 27, 2017Error message: Assertion failed: ModuleInfo.Module.IsUnique() [Link Removed] [Line: 557] Source Context: Most recent user affected CL: Logs: See attached Issue call stack shares some similariti ...
Packaging fails when nativized blueprint implements interface with virtual function
UE - Gameplay - Blueprint - May 18, 2017If an interface contains a virtual function that returns "nullptr", If an interface contains a UFUNCTION that has a TSubclassOf type as a parameter or return value, implementing the interface in a b ...
Foliage scalability does not accurately update when settings are changed in game
UE - World Creation - Worldbuilding Tools - Foliage - Sep 26, 2017There is an issue that occurs where changing the scalability settings via the game script during play saves the values for the editor, but when the game is played a second time, the settings visuall ...
Custom Widget does not change cursor settings
UE - Editor - UI Systems - Nov 20, 2017When you are using a Custom Widget, changing the cursor setting does not change cursor during PIE or packaged games. only changing the cursor options in the original widget fixes the issue. This iss ...
world outliner does not hide attached actors when turning off visibility
Tools - Nov 29, 2017When attaching actors via the world outliner, there is an issue occurring using the visibility option, actors attached via the world outliner do not follow the visibility of what they are attached t ...
FApp::IsUnattended checks are missing when a message box is displayed because serialization has gone out of bounds
UE - Foundation - Core - Jan 2, 2018In cases where serialization goes out of bounds, there is no check to see if the app is running in unattended mode before the message box is displayed. If the app is running unattended, such as on a ...
Adding HISMC instances resets wind for all existing instances
UE - Graphics Features - Jul 6, 2018When adding new HISM instances, actors using SpeedTree -> WorldPositionOffset material are reset. 4.19 Repro project provided by user. I was unable to get WPO wind working in 4.18, I did noticed th ...