Unreal Engine Issues

LevelStreamingPersistence: Crash when streaming in destroyed map actor with persisted properties

Context The LevelStreamingPersistence plugin can be used to remember and restore properties on actors and components that are part of a streamed level. Saved property values are restored when a lev ...

LevelStreamingPersistence: BP added components don't persist properties in PIE until map actor resave

Context The LevelStreamingPersistence plugin can be used to remember and restore properties on actors, components and other objects that are part of a streamed level. Persisted properties are resto ...

LevelStreamingPersistence: BP variables that aren't Instance Editable get reset

Context The LevelStreamingPersistence plugin can be used to remember and restore properties on actors and components that are part of a streamed level. Blueprint variables can be marked as instan ...

PrimaryAsset reference in UserDefinedStruct default values gets nulled

Having a block in layout before switching to overlay strategy affects the overlay output.

Issue: If "Resizable" Layout Strategy contains a block, it will influence the "Overlay" Layout Strategy. Expected behavior: When using "Overlay" Layout Strategy, it should disregard whatever the "R ...

StateTree: While editing State Parameters or exposed properties of a Condition/Task, an ensure() fires when editing inputs of a Property Function bound to an array element

Consider an array property that can be edited in the StateTree editor. This can be a State Parameter or an exposed property of a Condition or Task, for example. Each element of the array can be boun ...

Physics Constraint Actor: When plasticity is enabled, Drive Position Target is reset to zero on constraint initialization

When a Chaos joint constraint is first created, having linear/angular plasticity enabled will unexpectedly force its linear/angular drive position target to zero on initialization, disregarding the ...

Engine crashes when renaming assets inside an L10N folder.

The engine crashes when renaming a localizable asset inside an L10N folder. The engine attempts to associate it with the original localizable asset, but it is unable to find it and ends up accessing ...

RecastNavmesh contents are non-deterministic across navmesh builds

Per-tile data such as TileIndex and salt are stored non-deterministically. ...

World Condition FWorldConditionQuerySharedDefinition fails to Link in builds in Unreal Engine 5.7

In FWorldConditionQuerySharedDefinition::PostSerialize, if (Ar.IsLoading() && SerializedObject != nullptr) the SerializedObject is currently only used for debug logging within Link() and is not ...