Unreal Engine Issues

Changed Constraints do not show up when enabling Show Only Modified Properties

This is not a regression. Tested in //UE5/Release-5.0 CL20979098 Changed Constraints on a Static Mesh do not show up when enabling Show Only Modified Properties. ...

Imported animation has one more frame than the original fbx

In UE4.12, imported animation has one more frame than the expected frame number. AS_AN_StepAnim_Test.fbx is 60 frame long animation(starts at frame 0, ends at frame 60). When imported to UE4.12, it ...

If Skel Mesh Material Element order changes, Cloth assignments stay in the same order

If Skel Mesh Material Element order changes, Clothing assignments stay in the same order. I don't know if there's a way for the editor to interpret the material assignments on import, but this can ...

[Legacy][FBX] Animation curves are not added to the skeleton anymore

[AI] Navmesh tiles on different layers get removed while streaming out in WP Dynamic Modifiers Only navmesh

 Streaming out the navmesh and streaming the area back into the world before the GC runs causes the navmesh streamed back into the world to only have navmesh tiles on a layer with tiles that would b ...

Inconsistent media texture new style output state across the engine

A simple search for `NewStyleOutput = true` will reveal the many instances where this flag is already forced on, including media plates and media bundles. This however means that we have incompatib ...

[AI] Fill Collision Underneath for Navmesh does not work for ISM instances

Although the ISM component allows for enabling the flag for Fill Collision Underneath for Navmesh, it does not add the modifier for this to the navigation data for its instances.  ...

Landscape normal behaves differently on CPU vs GPU

One of our licensees encountered this issue. Landscape normal is calculated differently on GPU vs CPU. See screenshot below: left is GPU (with Edit Layers enabled) and CPU (Layers disabled) [Image ...

loading hangs on new level with the new audio engine and media sound components

When enabling the AudioDeviceModuleName=AudioMixerXAudio2 setting in the windowsengine.ini file it causes new level loads to lock up. This may be due to the garbage collection stuck in a loop wai ...

Lighting channels not working as expected when enabling Ray Tracing Shadow

Non-Ray Tracing Shadows are only cast from lights on meshes assigned to the same Lighting Channel. When enabling Ray Tracing Shadows this is not the case. Lights will still cast Ray Tracing Shadows ...