Unreal Engine Issues

VSM SMRT SamplesPerRay CVars behave differently if groom assets are present leading to a potential full-scene shadow

When a groom is present, setting any SamplesPerRay SMRT CVar to zero results in an unexpected complete shadow projected from the light. ProjectLight() in VirtualShadowMapProjection.usf has addition ...

Update Capture causing Post Process Flickering across whole scene

When a Scene Capture Actor is updating the content via an Update Content Node, the Static meshes in the world will flicker or pulse according to the update timer for the Scene Capture Actor. This o ...

GetMouseX returns stuttering value if ShowMouseCursor is enabled

Showing the mouse cursor and holding down the left mouse button while dragging will cause the MouseX event to broadcast incorrect axis values.  ...

Radial Impulse does not affect objects unless it can affect both center of mass and collision if center of mass is outside of collision

Firing a radial impulse does not affect an object whose center of mass is located outside of its' collision unless both the center and the collision are simultaneously affected by the same force. ...

"Active" marker on shot track scales improperly when using Time Scale

"Active" marker on shot track scales improperly when using Time Scale ...

SkyLight is not affecting the volumetric fog

Looks like this behavior was working as expected until 5.1 Preview 2 ...

MapCheck warnings when opening a map using landscape override material

Find Session does not always return the correct amount of sessions

Find Session does not always return the correct amount of sessions when finding sessions at the same time. ...

'Random Pitch Angle' not working when 'Collision with World' is enabled for Foliage instance settings

The 'Random Pitch Angle' setting within the Foliage instance settings are being overridden or ignored when 'Collision with World' is also enabled. This occurs in the binary releases of 4.12.5, 4.13 ...

Using Snap Rotation displays the Rotation wrong (or calculates the Rotation wrong and losses precision) when the Y rotation axis is 90 degrees

Although the Details Panel shows the degrees wrong, the object seems to have done it's rotation correctly but not in the right degrees. It will rotate to the position specified but it goes the wrong ...