Unreal Engine Issues

Material Editor Crash occurs on mathematical operation node receiving invalid input from a Texture Object

Clicking the Closed Loop check box for a Blueprint SplineComponent crashes the Editor.

Clicking the Closed Loop option in a new Spline Component results in the Editor crashing. This only occurs in 4.8 Preview 1 (so far). 4.7.6 and Main appear to be working correctly. ...

Calling Finish Recording Output causes a crash in PIE

The Finish Recording Output node from the Audio Mixer BP Library crashes due to an invalid Path input. This is a regression from 4.23.1 (CL-9631420).  This was reported and tested in 4.24.3 (CL-115 ...

Build Warning when HotReloading - LogUObjectGlobals:Warning: Guid is already used by

Changing class code causes class instance placed in the viewport to produce the warning message shown below upon hot reload. Also reported that callstack occurs but does not crash the editor. The ...

Control Rig parameters don't function in the AnimBP after the Editor restarts

Control Rig parameters don't function after editor restarts. Also the default values don't function and you need to use an input instead of directly editing the values of the pins. You can work aro ...

Nanite Instanced Static Meshes lost selection outlines in UE5.5

Nanite ISMs lost selection outlines in UE5.5 Actors having an ISM component which uses a static mesh with nanite do not get a selection outline when selected in the editor. Having Nanite is essentia ...

Bone names of ~100 characters or longer crash the editor when baking to control rig

This is an issue with inconsistencies over rig names and how control names are generated. We expect that a control name will be appended with _CONTROL or _CURVE_CONTROL. But because URigHierarchy: ...

Distributed HLOD builds always fail for projects not under the Engine Root

In BuildProject.txt, to make relative path to the project outside the engine root, all paths contains “..” after action command directory. D:/dev/UnrealEngine-5.5.0//HLODTemp/f09bf0f5/HLODBuilder0 ...

Crash on Linux and Windows with Vulkan when adding Atmospheric Fog to a Level

Adding an instance of Atmospheric Fog to a Level causes the Editor to crash on both Linux and Windows when using Vulkan. There is a different callstack when SteamVR is enabled on Linux which is also ...

Assert caused by using FText::FromStringTable to initialize a FText property in the constructor of a UStruct based off FTableRowBase

When using FText::FromStringTable to initialize an FText variable in the constructor of an FStruct that inherits from FTableRowBase, an assert is caused due to recursion. The assert is as follows:As ...