Unreal Engine Issues

Crash on exit PIE when playing with more than one player on Linux

When playing in non-single player game in the editor (either set # players or check dedicated server checkbox), the editor will crash when the play session ends. Regression: Yes - editor does not c ...

Opening a widget blueprint on Linux causes editor to crash

The editor crashes when attempting to open a widget blueprint. ...

[CrashReport] UE4Editor-D3D12RHI!FD3D12Viewport::PresentChecked(int) [D3D12Viewport.cpp:492]

Callstack is garbage past D3D12 calls but logging for visibility. Generated from CrashReporter ...

Bug in CurveLinearColor makes colors of Diffraction material white outside curve range, causing rendering artifacts

There seems to be a regression with linear textures (commonly for multi-channel masked textures) in UE5.4. Setting the "Encoding Override" (under Texture > Advanced > Source Color Settings) to "Line ...

Editor crashes when importing alembic asset

Editor crashes when importing Alembic material asset. The editor will crash once selecting the asset in Windows explorer, before the Import Options window appears. When testing this, we had an ave ...

StableSpringsSystem has lots of warnings

System successfully compiled with 16 warnings. /Engine/Generated/NiagaraEmitterInstance.ush:2732:250: note: variable 'OutMaterialMultiplier' is declared here void SolveDistanceSpringMaterial_Emitter ...

Source control commandlets do not consistently check provider status for read only or checkout and instead rely on read only state of files

Invalid DumpGPU capture when ProjectDisplayedTitle contains special utf8 chars

Placing a special UTF-8 character into the "ProjectDisplayedTitle" will result in GPU dumps failing to open. This appears to be because the dump will switch between us-ascii and UTF-16 file formats ...

When using Lighting Scenario, loading order will affect how it's applied to the instances

When using Lighting Scenario, loading order will affect how it's applied to the instances, resulting in corruption if content is loaded after the lighting scenario ...

Orthographic Rendering - Lumen Reflection Artefacts