Unreal Engine Issues

Mobile Preview -> AutoLandscape Material broken if created in 4.22+

Landscape Layers created in 4.22+ revert to default material in Mobile Preview. Confirmed in MAIN at CL 9730599 ...

Spline component that is altered in the construction script cannot be referenced by the Event Graph

A Spline component that is altered in the construction script cannot be referenced by the Event Graph. ...

The orientation of the tangent space seems wrong with SkinCache recompute tangent enabled

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 ...

[CrashReport]Assertion failed: !bInstancedStereoEnabled || (bInstancedMultiViewportEnabled || bMobileMultiViewFallback) [File:./Runtime/RenderCore/Private/StereoRenderUtils.cpp]

Generated from CrashReporter ...

Crash, Couldn t find Shader FHitProxyVS for Material Resource M_Glass

Changing the properties of M_Glass and M_Metal_Copper to two sided via the property matrix crashes the editor to desktop. (Note: M_Glass with ANY of the M_Metal Materials except M_Metal_Chrome will ...

Crash when using StaticDuplicateObject with mismathced Source and Destination class types

Starting in Unreal Engine 5.4, StaticDuplicateObject internally switched to using Unversioned Property Serialization (UPS) for performance reasons. However, UPS assumes the source and destination ob ...

Attempting to apply instance changes to blueprint after altering a struct array crashes editor

Editor crashes if a struct array that has been made editable is edited in an instance within the details pane of the level viewport, then the changes are applied from the instance to the base bluepr ...

Packaging for DLC with plugin multiple times causes failure due to file path length

When the DLC is being built for a project and stored in a plugin, the result is normaly until the DLC is packaged multiple times. This leads to the file path becoming more and more nested each time. ...

GAS: Removing an AttributeSet followed by removing an active GameplayEffect results in client crash

Gameplay Ability System Standalone: Removing an attribute set and then removing an active gameplay effect that has a modifier for an attribute from that set results in a crash. Currently, one must ...