Unreal Engine Issues

Imported animations don't import correctly when using same import settings as skeletal mesh it's based off

When importing an animation using the same import settings as the imported skeletal mesh it is meant for part of the mesh is rotated 90 degrees around the root. The files that were used to verify th ...

Memory leak in Test build when moving ISM with UpdateInstanceTransform

This leak occurs in Test builds, but not in Development builds. Updating InstancedStaticMesh with UpdateInstancedTransform every frame causes a memory leak. This screenshot was taken using Mempr ...

HideCategories metadata does not hide native Component categories when viewing the root actor

Seems like we are probably just missing a metadata check when drawing the details of the actor instance, and it is only doing the check for drawing ActorComponent details.  ...

Decal Fading parameters are completely broken

World Position is incorrect when used to control the opacity mask in a nanite spline mesh

When calculating the opacity mask, Nanite spline meshes do not have the correct World Position in the Material. This leads to visual artifacts when the mask relies on the world position. ...

Changing transforms to absolute in parent blueprint does not propagate to child blueprints in the level

If the transforms for a blueprint component are changed to "absolute" location and/or rotation, new child blueprints created will correctly show the absolute location/rotation changes, but the child ...

[CrashReport] UE4Editor-Core.dylib!<Unknown>

Crash Reporter Link: [Link Removed] User's description in Crash Reporter: Clicked on the + button to GameModeOverride in the World Settings panel. ...

Importing FBX file with same material slots and texture names has bugs

When importing a file from Blender, UE creates the correct number of materials, but the number of textures is incorrect and is being overwritten, and not importing the correct amount. Tested and re ...

Input consumed by a widget's action binding can be skipped if using key modifiers

The following code in UPlayerInput::GetChordsForKeyMapping is at fault for this:  !(KeyMapping.bAlt || KeyMapping.bCtrl || KeyMapping.bShift || KeyMapping.bCmd || ActionBinding.KeyEvent == EInputEv ...

ETriggerEvent::Canceled is not set when the player controller is set to "UI Only" in Enhanced Input

From the UDN:When setting the PlayerController input mode to "UI Only", all game inputs are blocked/frozen to their current state, and release (ETriggerEvent::Canceled) is not called on them. Any in ...