Unreal Engine Issues

BC7 Format in Texture Asset Mip Maps are not correct

When enabling BC7 compression format for a texture in a project that has SM4 disabled will result in the last two Mip Levels being gray. This happens on any texture size. The number o mip levels may ...

Hierarchical Instanced Static Meshes do not render in Custom Depth

When rendering a custom depth post process material Hierarchical Instanced Static Meshes will not use this even if they have been enabled to do so. Sample Project attached. ...

No warning is shown when a disabled mobile shader permutation is required for rendering

Adding entries to TMap in custom asset type not always reflected without restarting editor

If you adding entries to a TMap in a custom asset type in the content browser, after a certain number of entries the last entry fails to be found with the "find" function for TMaps in blueprints, ev ...

Material loses Material Function reference when both are moved simultaneously

Moving a material function asset along with a material using the function causes the material to lose the function reference when the project is restarted. Regression: Yeswith Material and sub fold ...

Collision problem in nativized blueprint

Issue reported by one of our licensee on the Japanese UDN https://udn.unrealengine.com/questions/480660/view.html ...

Spline Mesh Collision doesn't work in packaged game when spawning them at runtime

Spline Mesh Components lose their collision in a packaged game when spawning them at runtime, or modifying them via 'Set Start and End' function at runtime. ...

Show Flags are changed to the state that they were set on editor startup when switching to a different level

Show Flags are changed to the state that they were set on editor startup when switching to a different level It appears that the state of Show Flags are stored in the editor on shut down, this is c ...

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 ...