Unreal Engine Issues

D3D device being lost ( DXGI_ERROR_DEVICE_REMOVED ) on both D3D11 and D3D12

It is hard to reproduce, but a licensee reported in UDN that it crashed on his computer frequently. He provided two crash dumps with logs which I uploaded here.[Link Removed][Link Removed] OS: W ...

Creating/Destroying UWorlds rapidly can cause dangling pointers from UAutoDestroySubsystem

To summarize what I'm seeing there, a bunch of UObjects relating to that world have been destroyed but not all destructed. The UAutoDestroySubsystem pointer is still on the static tickable list, and ...

Compsure crashes when reordering transform passes

Re-ording the Transformpass array results in a crash of the engine. Link to repro video: [Link Removed] ...

Modulated Shadow doesn't work

4.22 is working On Mobile sometimes Modulated Shadow is useful for Cast custom color and value Shadows on Unlit objects(custom celshading for example) ...

Crash when destroying a geometry collection actor

When an actor with geometry collection is destroyed, the engine doesn't remove elements from array in the ChaosSolver So illegal references occurs. Removing element with following quick fix code ...

VR Scouting - Snapshot Tools and Camera Viewport differs in Color level

Widget Slider increments in an odd way when it is dragged outside of its bounds when next to another Widget

The attached video shows the results of this bug. When two Widgets are next to each other and one of them has sliders, when the sliders are dragged past their bounds they will increment backward so ...

Network profiler crash

Running 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. ...

When always loading last project, project logs are saved to the engine folder

Checked on the Binary version //UE4/Release-4.25 stream CL 13942748 Version 4.25.3, logs are also saved into Engine folder: \AppData\Local\UnrealEngine\4.25\Saved\Logs instead of a Project folderIf a ...

Crash launch application adding .umap url

The application crashes when adding ".umap" to the launch map at application launch. If not specify ".umap", it will be able to launch application. There appears to be a failure to parse the URL. Th ...