Unreal Engine Issues

Invalid access location compressing a BC6h texture in the editor

Large texture crashes during Oodle compression with "-stompmalloc". It appears to be an internal Oodle error. Also tested on //UE5/Release-5.5/, CL: 37463908 ...

Using a Macro to access a variable from another Actor causes a crash in Standalone

Using a Macro to access a variable from another Actor causes a crash in Standalone. This does not seem to affect any other preview in editor, nor packaged games. Reproduced in 4.7.6, 4.8 Preview 4, ...

AddComponent node fails to be scheduled after adding an "expose on spawn" variable to an ActorComponent-based Blueprint Class.

If an existing AddComponent node is placed in an Actor Blueprint's Event Graph for a custom ActorComponent-based Blueprint Class, the node will fail to be scheduled after adding a variable marked "E ...

IOS deviceCrash when input Korean Charactor on EditableTextBox

Unloading level during PIE leads to editor crash

Unloading level during PIE seems to lead to an editor crash. Most easily reproducible by enabling malloc stomp. ...

Niagara Scalability Crash When Processing Significance

Method FNiagaraScalabilityManager::ProcessSignificance() iterates on indices from Context.SignificanceIndices and uses them to access the State and ManagedComponents arrays. It can then decide to cr ...

Mesh Vertex Painting Broken for Splines

The mesh painting mode appears to no longer work on splines, as the vertexes seem to have all vertex colors at 1, 1, 1, 1 by default, and can't be removed or painted anything else. ...

Any Key input binding does not respond to any key presses

The input binding "Any Key", which was added in 4.9, does not respond to any key presses. Regression?: No: This feature did not exist before 4.9 ...

Bug in StringTemplate.cpp related to modulo operator in MaterialTemplate.ush (code fix provided)

Shader Template files like MaterialTemplate.ush do not submit previous chunks when encountering a `%` character, unless that `%` character is `%s` or `% {...} `. Because the error is happening ...

DestructibleMesh does not correctly effect vertex color of material.

Destructible Mesh does not correctly affect vertex color. ...