Unreal Engine Issues

Diffing blueprints in Perforce changelist reviewer incorrectly displays blueprints that reference assets not in local filesystem

When diffing a blueprint in the Perforce changelist reviewer in-editor (Review Changelists), if the blueprint references an asset that does not exist locally but rather exists as a newly added asset ...

Browsing to a "Packaged Level Actor" does not take to the PackagedLevelActor inside the Content Browser.

There is a bug inside Unreal Editor when selecting "Browse to Asset" for a Packed Level Actor. Right clicking the Packed Level Actor, all the asset options appear. If you click the "Browse to Asse ...

[UDN-19505621] Hide Selected At Startup Issue

From [Link Removed]: 你好，我发现这里的选项有一些工作逻辑不一致，提一个改进建议： ​ 当手动隐藏Actor小眼睛图标的时候，设置Hide Selected At Startup 是无效的，这具有很大的误导性，而其他任何情况下，工作都是正常的，比如： 1.小眼睛隐藏+Show All At Startup 2.小眼睛隐藏+Show Selected At Startup ...

NPC - Does not get updates from Material Parameter Collection changes in the editor

When an MPC is selected as the Source Material Collection for an NPC, all of its current parameters are carried over to the NPC with their current values. After that, if parameters are added to, rem ...

An imported file that resides within the project's folders gets a relative path. That path is not updated it you copy the uasset to another folder. That breaks the Reimporting functionality.

An imported file that resides within the project's folders gets a relative path. That path is not updated it you copy the uasset to another folder, so from the location of the new asset's the relati ...

AssetRegistry has poor performance when a large map is resaved: Directory IO

IO cost of directory scans is one of the costs present in the AssetRegistry when a large map is resaved. Maps can have external actors which all have to be rescanned and reported to the map for incl ...

Blueprint classes are listed in Object pickers, but will not work as expected

Because of the way blueprints are implemented, the "Blueprint Class" asset actually points to the editor-only UBlueprint object. Because of this, all blueprint classes will show up as options for ge ...

UDataLayerManager::Initialize perf issue in Editor build

In editor, WorldDataLayers acceleration table used to map DL Names to DL instances is not created. The main reason was to avoid to handle all the case where it would need to be updated. When UDataL ...

Crash after generating HLODs for merged meshes that have all triangles culled

Reference to control rig can be lost on actors with multiple skeletal mesh components

In the attached project, when we initially add a control rig track for the actor with multiple skeletal mesh components, we add the control rig for the correct component because FControlRigParameter ...