Unreal Engine Issues

HLOD lightmap lost after level reopening with "save LODActors to HLOD Packages" option in project settings is on.

Editor Crash when changing Default Properties of a TArray of UStucts containing an InlineEditConditionToggle property in Blueprint Parent Class

This bug causes an editor crash. This crash occurs when changing the default values of a UStructs properties that are used as EditConditions, when they are set to InlineEditConditionToggle within a ...

Adding a StaticMeshComponent pointer to a derived StaticMeshComponent class has inconsistent behavior

Adding a UStaticMeshComponent pointer to a class derived from StaticMeshComponent allows for two meshes to be set by a single component. Setting two meshes inside a blueprint this way will only allo ...

Class Defaults do not show Texture variables when called from other blueprints

If class defaults are accessed in an actor blueprint from another blueprint, texture variables will not appear in the class defaults list on the "Get Class Defaults" node. ...

Shadows cast from static meshes are not appearing on characters in Mobile Preview

When placing a Static mesh into a level that will cast a shadow and building lighting, no shadow will be shown on a character when walking through its shadow ...

Math Expression nodes cause packaging to fail.

When using a math expression node within a blueprint, the project will fail when packaging. ...

Skeletal Mesh with Tessellated Material causes Excessive Blur

With a Tessellated Material, either Flat or PN Triangles, applied to a Skeletal Mesh when playing, the Mesh has excessive blur when in motion. If you use the same material and turn off tessellation ...

The Select node will accept both a Parent Class and a Child Class as inputs if the Parent is added first

The Select node will accept both a Parent Class and a Child Class as inputs if the Parent is added first. The node will compile if the Index is set to anything other than Wildcard. Note that the no ...

Packaging a plugin from Plugins Editor UI wipes the target folder before packaging

"Package Plugin" from Plugin Editor UI will wipe the target folder’s contents first then populate it with plugin files. User was expecting “Package Project” like behavior: Create a new folder in th ...

Adding array element of instanced meshes during simulation does not increase amount of elements in array

Adding array element of instanced meshes during simulation does not increase amount of elements in array. Regression (No) issue (does) occur in 4.10.4 ...