Unreal Engine Issues

Param usage bug when using switch params

From the ticket: In a material instance using the attached master material if A is TRUE and B is FALSE I expect to be able to configure param C in the UI. However param C is shown only when Useswi ...

Specular/Anisotropy problems with Nanite Meshes

Specular highlights can disappear with clearcoat materials, when "Clear Coat Enable Second Normal" is enabled ("r.ClearCoatNormal"). ...

Queued AnimNotifies skipped on Server via CharacterMovement.

From a licensee: The issue is that under certain edge conditions I am experiencing Anim Notifies not being executed on our Dedicated Server ( it is an off case, so they typically do work, there a ...

GAS: Creating an UGameplayEffectUIData blueprint will lead to a failed Data Validation

The logic for data validation on UGameplayEffectComponent expects it to be owned by a UGameplayEffect. Any Blueprint derived from UGameplayEffectUIData (child of UGameplayEffectComponent) fails this ...

Switching project monitor with shift+win+arrow keys

Using Windows+Shift+Arrow keys to move the application window in Windowed Fullscreen from a low resolution monitor to a high resolution monitor does not resize the application window on a Windows 10 ...

Assertion failed on reimporting FBX scene

Following code works as a work around : void SFbxSceneStaticMeshReimportListView::OnChangedOverrideOptions(TSharedPtr<FString> ItemSelected, ESelectInfo::Type SelectInfo) { #if 0 check(ItemSele ...

Dataprep crash when creating a parameter from a datatable asset or any asset

Using Scene Capture 2D with a movable Skylight will cause a crash

When placing a Scene Capture 2D with an assigned Render Target Texture and using a movable Skylight the editor will crash. [Link Removed] ...

Volumetric Translucent Shadows will only work if you select the mesh, doesn't show up in game

When using Volumetric Translucent Shadows for static meshes the shadows will only work if the mesh is selected. When the mesh is deselected it will not render. This worked in 4.8.3, but is broken ...

Distance Field AO does not work below a landscape

This may be a limitation at the moment, but landscapes will block any AO generated from Distance Fields for anything that is below the landscapes surface. This can cause issues for anyone using a ca ...