Unreal Engine Issues

Conditional crash when a DragAndDrop operation is done betweeen Data Layers.

A crash occurs to the engine as when we when have unreal as a backgroud task, and we try to drag and drop a layer to another by selecting the layer visibility button. ...

Affect Indirect Lighting While Hidden can affect the environment after data layer unload in editor

After setting Affects Indirect Lighting While Hidden but before saving the level, the emissive contribution persistents through datalayer visibility toggles. This does not appear to occur in PIE, on ...

Frustum culling provides inconsistent results causing particles to render even when the bounds are out of view.

When the camera is just outside of the box bounds and it is angled directly away from it , it will start rendering the particles again (as determined by stat GPU differences) despite being out of vi ...

Data loss with subobjects in Blueprint arrays

If a file has been opened in the editor, it cannot then be unshelved by perforce until the editor is restarted

When the Editor launches it does not have a file lock on assets that are not open. When the asset is opened for editing, UE gets a lock on the file and this lock persists even after the tab is close ...

IsLocalController returning incorrect value when PIE listen server travels back to standalone map

In this situation where the listen server travels back to a level without listening, IsLocalController can return the incorrect value. After the NetDriver has been shutdown and destroyed, the pawn a ...

AnimBP warning word order mistake in Japanese

The warning ""variable name" に "BluePrint" という名前の変数はありません" in the output log within the AnimBP while the editor is in the Japanese language mode has an incorrect word order. "Blueprint"Blueprint sho ...

"Set Animation Mode" creates multiple instances of the AnimBP

Changing the Animation Mode repeatedly creates a new instance of the AnimBP being used every time you switch back to the Animation Blueprint mode. Example Project: [Link Removed] ...

Opening a Sprite that is already opened in Property Matrix closes the Property Matrix tab

Opening a Sprite that is already opened in Property Matrix closes the Property Matrix tab. This is inconsistent with other asset types; tested with Textures, Materials, and Blueprints, and in each c ...

Assertion failed: !EditReregisterContexts.Find(this)

Editor crashes if a blueprint has "Can Ever Affect Navigation" changed multiple times and is compiled. Crash link: [Link Removed] Frequency: 4/4 ...