Unreal Engine Issues

Loss in Specularity on Skin Shading when Shadowed by Indirect Capsule Shadows using r.sss.checkerboard 0

A licensee is reporting incorrect or over exaggerated loss of specularity on the Subsurface skin shading model when shadowed by indirect capsule shadows, and then modifying the r.sss.checkerboard se ...

Landscape Tutorial Missing a Word

In the Landscape Tutorial Overview there is a word missing in the tutorial. ...

Old iTunes DLL causes UBT to fail on startup

Mesh painting on staticmesh doesn't always apply Colors to All LODs

See the video [Link Removed] ...

Crash (Assertion failed "SystemInstanceController->IsSolo()") when enabling "Start with Tick Enabled" on a Niagara Component

Currently, Niagara Components are only expected to have their TickComponent() method called when their system is marked as "Solo", which makes them be simulated individually. In the most common scen ...

Details panel is very slow when there are many items in an editable array (even if hidden) (was Tile Selection Lag within Tile Set Editor)

Selecting tiles within the Tile Sheet Editor becomes laggy after changing the size and spacing of the tile set. ...

VALIDATE_UNIFORM_BUFFER_LIFETIME fails compilation

Also verified on Release-5.5.4 CL 40574608 ...

Crash when exiting editor before EditorUtilityTask completes

If exiting the editor before the EditorUtilityTask completes, it crashes. It will not crash if canceling the UtilityTask and then exit the editor. The following implementation does not allow destruc ...

[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 ...

VisualizeTexture with the BMP flag causes a crash when any mip over mip0 is requested

When a mip level higher than 0 is requested in VisualizeTexture, the engine will crash. The root cause appears to be VisualizeTexture.cpp:924, on which an incorrect mip level is used to read a non-m ...