Unreal Engine Issues

FBX skeletalmesh animation import use an integer for sample rate

Integer sample rate is not playing well with 23.976(NTSC/24) sample rate, the curve get resample at 30Hz in that case and we loose precision. We need to support FFrameRate sample rate to get accura ...

"Reference space" when exporting LevelSequences with "Override Instance Data"

When exporting a Cinematic Camera as FBX and importing it back, all transforms and Camera view are shifted. This happens when in Level Sequence Actor has the property "Transform Origin Actor" set to ...

Trimming an animation that uses root motion can cause the direction of the animation to appear off

After trimming an animation that includes a rotation in the begining the translation for the root motion appears to be applied as though the rotation had still been applied. I have included the or ...

Make staticmesh custom LOD coexist with LODGroup

The LOD Group is remove if we import a custom LOD for one of the generated LOD. This can be difficult when user change the LOD group setting later in the production, has the LODs that was regenerate ...

Make skeletal mesh custom LOD coexist with LODSettings asset

SK: The build code do not look at the alternate skin to do the welding

We need to investigate if we want this behavior or not, if we do not weld the base lod vertices, maybe we will have bad mesh behavior when not using the alternate skinning. The consequence of this n ...

Imported meshes with hierarchical structures below lodGroup are not imported correctly

All meshes under lodGroup are not imported, only some of them. If all meshes are merged into one, the imported meshes will be output correctly. ...

Static meshes disappear after changing a property in the collision category if Enable Async Static Mesh Compilation is false

Can't update thumbnail of Texture 2D Array asset when upate source texture resource.

Texture2DArray asset thumbnails are not reflected when the source file texture is changed. Once a Texture2DArray asset is opened and loaded, the thumbnail will follow any subsequent source file upda ...

A static mesh far from the origin appears to wobble in PIE

It seems that the numbers are rounded in VertexFactoryCommon shader. The cube consists of vertices that are very far from the origin and are placed on the screen by placing them at coordinates that ...