Unreal Engine Issues

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 ...

Unexpected Collision Response When Nesting Primitive Components with auto-weld enabled and physics disabled on children. The root primitive falls through floor even though it is set to block all.

Context Auto-weld makes it so if a child is attached to a parent, the two bodies will be joined into a single rigid body. Physic settings like collision profile and body settings are determined by t ...

Blueprints converted to static mesh with negative scales for a component will invert the faces

Negative scaled static mesh components in a blueprint will invert their faces when converted to a static mesh. Note that this does not happen in the following situations: If the BP is scaled negat ...

AnimNotifies get reproduced more times than expected.

When setting an AnimNotify to an AnimationSequence, this AnimNotify can be triggered multiple times when only set once. This issue only happens when the mentioned AnimationSequence that contains the ...

Mobile Preview -> AutoLandscape Material broken if created in 4.22+

Landscape Layers created in 4.22+ revert to default material in Mobile Preview. Confirmed in MAIN at CL 9730599 ...

AllowCommandletRendering D3D12 device crash

Distance Field shadow culling when view is at certain angles

Distance Field shadows are culled for larger meshes at certain angles of the cameras view position. Map with reproduced setup is attached. ...

Component properties cannot be edited for instances of a Blueprint if more than one instance of that Blueprint in the level is selected

Properties of components that are added to a Blueprint cannot be set in the Details panel for instances of that Blueprint in the level if multiple instances are selected. These components also do no ...

Sequence with restore state set is causing a "Fatal world leaks detected" crash

We recently had a few occurrences of crashes caused by a "Fatal world leaks detected" error when unloading a level (in a packaged game and in editor). I tracked down what was keeping a references t ...

Levels lose folder hierarchy in Levels window on streaming method change

In the Level Window, Sub Levels which are nested inside of a folder will lose their hierarchy upon changing their streaming methods. ...