Unreal Engine Issues

Data validation FAILED due to IWBE_Blutility containing invalid data

4.26[AssetLog] D:\Binary\UE_4.26\Engine\Content\Tutorial\InWorldBlueprintEditing\TutorialAssets\IWBE_Blutility.uasset: Default__IWBE_Blutility_C is not valid. See the MapCheck log messages for detai ...

DateTime Variable in Sub Widget resets on Compile

When attempting to set the default value of a date time in a sub widget the changes are not kept after compiling. ...

NPC - Initializing a System parameter to a Niagara Parameter Collection data interface parameter does not work

Initializing a System parameter to a Niagara Parameter Collection data interface parameter does not work ...

The CVar r.Tonemapper.GrainQuantization doesn't work and the GrainQuantization is always on

Fbx import has some scale differences

A licensee has forwarded an fbx that came out of Nuke. I think the animation is importing into Sequencer correctly, but the objects seem to be scaled. If I take the fbx into Maya and then reexport i ...

Transform gizmo behaves incorrectly in the Blueprint editor viewport if multiple child components are selected and their parent component is rotated 90 degrees around Z.

When multiple child scene components are selected and their parent is rotated 90 degrees about Z, attempting to use the transform gizmo will move the components in the wrong direction relative to th ...

RVT Material Preview incorrect in Landscape paint target layers

Available network bandwidth is too low for uncapped but slow frame rates

The networking system has a max frame rate of 120hz by default. Inside UNetConnection::Tick it computes an estimated bandwidth by using that max frame rate, the engine's max frame rate, and the actu ...

Templated enum GetValueAsString function returns incorrectly formatted string

For many years there has been a static function on UEnum called GetValueAsString which would convert an enum like EAttachmentRule::KeepWorld to the string "KeepWorld", if you passed in the explicit ...

Merged actors cannnot cast shadows when source actors Cast Shadows is disabled

Merging actors with cast shadows disabled causes the merged actor to be unable to cast shadows at all. Toggling the Cast Shadows option does not resolve the issue. This is seen in //UE4/Release-4.2 ...