Unreal Engine Issues

Level export to FBX with actor X axis negative scale has issue in 3ds MAX

The fbx exporter set the fbx axis system like 3ds max, so the max importer is not converting the incomming transform. see: ...

Cloth rendering issue on triangles sharing kinematic attachments.

All render vertices on any cloth triangle that contains one or two fixed vertex are set as fixed, whereas this should only be the case if all three vertices were fixed. ...

Capture Source not changing in Planar Reflections

Changing the Capture Source in Planar Reflections is not working as expected. Without being able to change the source, Post Process Materials are not rendering in the Reflection. Reported in versio ...

Default UE splash logo appears briefly when launching an application with an alternate launch image on iOS

Various users have reported seeing the default UE splash logo appear briefly before their custom launch screen appears. This was reported to have been seen in 4.25, and did not occur for users in 4. ...

DisplayName Metadata tag is not used in the SCS editor or the My Blueprints window

This also brings up a good point about how `FName::NameToDisplayString` works. Currently it will only remove a 'b' character if a boolean is given, which leads to inconsistent results throughout the ...

Camera viewport hotkeys shouldn't affect Sequencer timeline when the viewport is focused

Sequence with null skeletal track sections crashes on load

Add contents of the zip file to your 4.26 project. Open the level sequence.  EXPECTED: It shoudln't crash. Log will print saying that it removed some animation sections. ...

Packaged ThirdPerson template with "start in vr" enabled packaged and launched with "-nohmd" crashes

The callstack is not XR-specific, it's just the engine trying to secure the audio device on startup, windows failing to return one, and the app not being able to continue safely. The crash does not ...

RemoveWindSource modifies game thread array while in a parallel for loop.

FScene::RemoveWindSource is called from a parallel for loop, and concurrently deletes wind component pointers from the same game thread array causing crashes when the scene contains multiple wind so ...

Nativized blueprint does not support reading values from TRange structs

Compile errors will occur during packaging with Blueprint nativization enabled if e.g. "Get" nodes are placed in a Blueprint on FFloatRange struct types (or any other explicit TRange derivative) and ...