Unreal Engine Issues

Right-clicking a DataAsset Based on a Blueprint Class can Crash the Editor

The editor can crash when you attempt to open the context menu for a data asset based on a blueprint class. This happens only if the blueprint class the data asset is based on is not currently loade ...

Anim notifies trigger repeatedly/every frame when using an animation mode track set to Use Anim Blueprint in a Level Sequence

The anim mode track seems to cause the sequence to retrigger notifies every frame. ...

[Python] Entry items are not displayed when sub-menus are added to the "LevelEditor.ActorContextMenu" section.

When the [Actor] menu is opened, the menu of the added entry can be displayed. When the [Actor] menu is opened from the LevelEditor's Outliner, it is not displayed.  Solution: Add the required menu ...

ICVFX Editor: Last Entry Index of "Pre-Viewport Color Grading" shows "Entire Cluster" group data.

The ICVFX view is displaying parameters for the entire cluster when the group in the right-most index is selected. Its expected that the right-most index group should behave like every other group, ...

GAS: RemoveActiveGameplayEffect crashes when called during world teardown for periodic GEs

AbilitySystemComponent crashes when RemoveActiveGameplayEffect is called during world teardown for an active gameplay effect that ticks periodically, by unsafe GetWorld()->GetTimerManager() access w ...

CopyTask in BuildGraph never throws an exception if the copy fails

CopyFile function in CommandUtils.cs assumes that an exception will be thrown if the number of retries is exceeded, but the loop condition prevents it from being thrown. Following fix works:publics ...

Light leaks when cast shadow disabled light is applied to the Hair material.

There seems to be a leak in the ContactShadow determination in DeferredLightingCommon.ush ShadowRayCast(), but I could not determine if this is the specification. This problem always occurs from 4. ...

Editor crashed when selected the property menu of the copy of a track with animation blend.

Investigate adding support for more flexible condition properties in the Material Editor.

The user has added a property to material expressions input node that has a complex expression in its "EditCondition" which isn't supported and results in a crash. Investigate adding support to thi ...

Fixing a Blueprint's compilation error after editor reload causes instances to lose transform

Saving and reloading a Blueprint instance with a compilation error, a.k.a., "Bad Blueprint" will lead to a transform reset when the Blueprint is successfully recompiled. ...