Unreal Engine Issues

[CrashReport] UE4Editor_ShaderCore!FVertexFactory::SetPositionStream() [vertexfactory.cpp:218]

User comment in crash group:error when i reimpot a mesh from a .fbx create in 3d max 213 void FVertexFactory::SetPositionStream(FRHICommandList& RHICmdList) const 214 { 215 ...

[CrashReport] UE4Editor_CoreUObject!PackageReloadInternal::LoadReplacementPackage() [packagereload.cpp:274]

No user comments in crash group 262 UPackage* LoadReplacementPackage(UPackage* InExistingPackage, const uint32 InLoadFlags) 263 { 264 if (!InExistingPackage) 265 ...

Landscape：Shadowmap the landscape casting doesn't match visual mesh after build lighting

Adding Variable to Struct (Exposed on Spawn) breaks SpawnActor functionality without error/warning

Adding a variable to a Struct used with SpawnActor breaks functionality without warning. Workaround: Clear Class from SpawnActor and reassign same class User Cites Blueprint Compile manager as fau ...

SolidWorks 2018 Assembly Datasmith Importer Error

A failed to import error is received when importing various SolidWorks 2018 Assembly files. A lot of the attached models are imported IGS files and were made into SolidWorks parts. Tried testing th ...

Cascade Alpha Over Life Module Doesn't Interpolate Vaules That Differ in .05 or Less With "Can Be Baked" Enabled

Alpha over life module doesn't interpolate vaules that differ in .05 or less with "Can Be Baked" enabled. Found in 4.19 CL# 4033788, 4.20 CL# 4233996, 4.21 CL# 4291146 ...

Cannot load asset in a Content-Only plugin if it is used in a Blueprint-Only project that has been packaged

Assets in a Content-Only plugin enabled in a Blueprint-only project cannot be loaded when the project is packaged. If a Content-Only plugin is enabled in a code project, the assets in the plugin are ...

RecastNavMesh is not generated at loaded sublevel

RecastNavMesh is not generated at the sub level dynamically added in C ++ in 4.20. In 4.18, 4.19 it was generated normally. Probably, changes to the large number about NavMesh systems from 4.19 to ...

"Enabled per poly collision" under "Support compute skincache" is ON causes a crash at runtime

It seems that "Enabled per poly collision" with "Support compute skincache" causes a crash at runtime immediately. We can easily reproduce it with ContentExample. The logs at the crash timing... L ...

Cloth simulation doesn't work correctly if Compute Skin Cache is ON.

It seems that cloth simulation doesn't work correctly on 4.20 if Compute Skin Cache is ON. We can easily repro it with Content Example [Link Removed] Is this by design? ...