Unreal Engine Issues

Global SkyAtmosphere and Clouds Issues (Ambient Light)

Ambient Light on Volumetric Clouds from Sky Atmosphere always is calculated as if the clouds are at the north pole of the planet. Using a sphere-shaped Sky Atmosphere and Volumetric Clouds causes t ...

When saving an emitter in the Niagara system as an asset, it crashes when overwriting an existing emitter.

Crash Duplicating an empty AtlasRow material node

This isn't a hard crash, but a "verify(...)" from MaterialExpressions.cpp, line 559. ...

Deadlock in UAnimationSequencerDataModel::Evaluate where FScopeLock Lock(&EvaluationLock) blocks execution indefinitely

When both the Sequencer Editor and an Animation Curve Editor are open for the same animation asset, the editor freezes completely upon editing the curve. Analysis indicates that the freeze is caus ...

Crash occur when loading AInstancedPlacementPartitionActor

Crashes when loading an actor that inherits from AInstancedPlacementPartitionActor. There is a serialization size mismatch. ...

After closing PIE, Right click dragging is confined to the Viewport bounds

After holding any mouse button down and pressing escape to quit the game, using the right mouse button to move in the viewport locks it to the left and right bounds of the viewport. Sometimes moving ...

Duplicating a blueprint that implements an interface and then removing that interface will cause compile errors that don't occur if the interface was removed from the original BP

See steps to reproduce. Looks like the fixup when saying Yes to "Would you like to transfer the interface functions to be part of your blueprint" doesn't work correctly on the duplicated BP. Inter ...

When show propertymatrix and delete target actor, the editor crash

It looks like it is null reference in propertymatrix. It always occurs when I execute the reproduction procedure. ...

Increment and decrement nodes return the incorrect value

Increment and decrement nodes return the incorrect value User Description: Getting the result of the Increment Macro seems to be incrementing the variable twice. Very confusing. Is this normal? ...

Crash while drag and drop 'Roll Holder L6Y' asset on viewport