Unreal Engine Issues
Unreal Engine Issues
Editor Crashes on Startup After Enabling Forward Shading When r.LightPropagationVolume=1
UE - Graphics Features - May 4, 2018If r.LightPropagationVolume=1 in ConsoleVariables.ini, enabling forward rendering and then restarting the editor results in a crash. This occurs in 4.18.3 and 4.19.2. ...
Crash Occurs when pressing PIE after changing the Default Cursor in Project Settings
Tools - Feb 10, 2015If a custom cursor is applied through Edit > Project Settings > User Interface Default Cursor and then the user attempts to launch their game the editor crashes. ...
[CRASH]SIGSEGV: invalid attempt to access memory at address 0x0
Tools - Jan 7, 2015Callstack: <CALLSTACK START> FTaskThread::ProcessTasksUntilQuit(int) Address = 0x1091943e5 (filename not found) [in UE4Editor-Core.dylib] RenderingThreadMain(FEvent*) Address = 0x10de37e4b (filena ...
Editor crashes when calling a "scroll into view" node with missing parameters
UE - Editor - UI Systems - Jan 15, 2018There is an issue where Editor crashes when calling a "scroll into view" node with missing parameters. This issue should be caught when compiling the blueprint as one of the values should not be nul ...
Changing the engine quality settings will cause the editor to crash
UE - Graphics Features - Feb 27, 2020Changing the engine quality settings to low or medium will cause the editor to crash This was tested in 4.24.3 @ CL 11590231 and doesn't occur, so this is marked as a regression. Mac Environme ...
Opening a data table based on a struct with a slate brush variable crashes the editor
UE - Editor - UI Systems - Slate - Feb 1, 2016Attempting to open a data table based on a struct with a slate brush variable crashes the editor. Frequency: 2/2 CrashReporter: N/A ...
Rewind debugger would crash when recording a character using Pose search
UE - Anim - Gameplay - Aug 8, 2025Our character is using the Pose search setup from GameAnimation content example. The architecture of the system is most the same with some new function that account for some input difference and sp ...
Editor crashes after executing the command r.DisplayInternals 1 or r.DisplayInternals = 1
UE - Graphics Features - Nov 2, 2022This is not a regression. Tested in //UE5/Release-5.0 CL22346211 Editor crashes with an assertion after executing the command r.DisplayInternals 1 or r.DisplayInternals = 1 ...
Calling SetPhysMaterialOverride in a component's C++ constructor results in a crash when opening a project in the Editor
UE - Simulation - Physics - Aug 1, 2018Attempting to call SetPhysMaterialOverride() in a component's C++ constructor causes the project to crash when opening it in the Editor. ...
Crash on device When using 'shot' console command on a iOS metal device.
UE - Platform - Mobile - Apr 27, 2015When entering the Console command 'shot" on an iPhone 6+, the device will crash immediately. Tested on an iPhone 6+, iPhone 5 (8.1), and a Galaxy Note 10.1 Tablet. Unable to test on 2522625 becaus ...