Unreal Engine Issues
Unreal Engine Issues
Python crash the engine at exit.
UE - Editor - Workflow Systems - Oct 25, 2022A UDN reported various crashes at exit in the embedded Python library. I was able to repro the issue in Release-5.1 and trace it back at the point where python runs its garbage collection in Py_Fina ...
Crash Clicking on Enum in BT Decorators After the Enum Has Been Altered
UE - AI - Apr 5, 2017Clicking on a Behavior Tree decorator that references an Enum blackboard key will crash the editor if that Enum has been altered in the method described in the repro steps. If you set decorators to ...
Using Attach To in Construction Script Causes the Editor to Crash
UE - Gameplay - Blueprint - Nov 17, 2015After creating a blueprint with a box trigger and a cube component, attempting to use an AttachTo (Box) node and then attaching the cube to the In Parent socket compiles without issue. However, if y ...
The DemoRec console command crashes the editor if used during PIE
UE - Networking - Aug 5, 2015The DemoRec console command crashes the editor if used during PIE. Reproduced in 4.9 Preview 2 binary and 4.9 Releases (//depot/UE4-Releases/4.9/Promotable-CL-2643093). Does NOT occur in 4.8.3 bina ...
Editor Crashes When Attempting to Change Units in Project Settings
Tools - Aug 17, 2016The editor crashes when attempting to make a change to the units located in Edit->Project Settings->Editor->Appearance. The crash occurs as soon as one of the dropdowns is clicked. This is a regr ...
Opening blueprint debugger crashes editor
UE - Gameplay - Blueprint - Apr 29, 2016The editor crashes upon attempting to open the blueprint debugger through the Window menu. Frequency: 2/2 Regression (Yes) issue (does not) occur in 4.11.2 ...
Network profiler crash
UE - Networking - Aug 6, 2020Running with the -networkprofiler command line argument can crash the server on the first engine tick in FNetworkProfiler::TrackFrameBegin because the file writer archive hasn't been created yet. ...
Crash when BP_LightStage SkyLight Cubemap Resolution changed by spinning value
UE - Graphics Features - Nov 28, 2017Engine crashes when the value in the Cubemap Resolution for the SkyLight component in the BP_LightStage is changed by spinning the value. This asset is found within the Advanced_Lighting map of a B ...
Crash While Loading UTexture Data Inside PostLoad During Open Level
UE - Graphics Features - Mar 22, 2017(User provided info) Crash (check fail critical error) if you try to load a UTexture's data (eg UpdateResource() or PlatformData .. Mip .. Lock/GetCopy) inside a PostLoad of anything during an Open ...
[CrashReport] D3D 'Hung' crash - FD3D11DynamicRHI::ReadSurfaceDataNoMSAARaw
UE - Graphics Features - Jan 4, 2017This is a frequent D3D Hung crash, similar to [Link Removed] and [Link Removed]. A potential fix for the other crashes was released in 4.14.2, but this crash is still occurring on that release. ...