Unreal Engine Issues

[CrashReport] UE4Editor_ShaderCore!FVertexFactory::Set() [vertexfactory.cpp:190]

This is a common crash in the 4.18 release. It is the exact same callstack (and crashGroup) as in [Link Removed], although that Jira had specific repro steps and was confirmed fixed in 4.18.0. The ...

Exporting a spawnable through Python doesn't work

Importing Alembic/ABC File with Large Number of Morph Targets Breaks Morph Targets

When importing abc files with several morph targets (as a skeletal mesh), some morphs do not import and the ones that do are distorted(see screenshots and attached project) -Number of morphs is no ...

UV Import layout error increases with movement of UVs away from 0-1 Space

When a user sets up an unwrap using a space outside the original 0 to 1 space the unwrap will increasingly show errors of positioning. For Example, in the following images the lower left vertex of ...

The cloth mask vertexcolor is not updated when re-importing new vertexcolors

The function UClothingAssetFactory::ImportToLodInternal that set the FClothPhysicalMeshData structure is not call again when we re-import so the vertex colors are not updated. ...

OBJ file causes a `Debug Assertion Failed!` error

When importing this users file of an OBJ asset there will be an assertion failed error. On the import message if you hit "ignore" until the mesh imports all will work in 4.10 or later. This was no ...

Reduced Tessellation at edge when using world displacement

Adding a material to a mesh that is affected by world position offset has reduced tessellation around the meshes edges. This is seen when viewed in wireframe and is influenced based off of the angle ...

After importing morph target: Ensure condition failed: Referencing SkeletalRenderGPUSkin.cpp

Hit handled ensure when dragging the slider in Morph Target PreviewLogOutputDevice: Error: Ensure condition failed: DynamicData->MorphTargetWeights.Num() == LODModel.MorphTargetVertexInfoBuffers.Get ...

Assets Imported Using "Import Into Level" Scaling Does Not Match the Scale of Assets Imported Through the Content Browser

Assets that are imported using File < Import to Level, import at a different scale than when importing through the Content Browser Screenshot attached to show difference in scale Meshes were both ...

When doing mesh(SK and SM) re-import, package UMetaData is lost

To add some meta data to an asset you need to do a "Editor Utility Widget" I create a button that add the metadata to a specific assets here is the onClick graph of my button [Image Removed] I us ...