Unreal Engine Issues

Water reflections and GI flicker in 5.4 and 5.3 (fine in 5.2)

Since 5.3 customers have been reporting flicker with water surfaces, demonstrating that in 5.2 this flicker is not present. [Link Removed] ...

External actors don't show soft references in reference viewer

No warning that soft references will be broken when deleting an actor

Deleting an actor that has soft references to it will not trigger a message box to confirm the deletion nor provide the list of other actors that reference it unless they are dirty. ...

Cooker: Research and recommend a solution for third-party systems to aggregate data from cooked UObjects

As with shader compilation, some third-party plugins need to accumulate information about all UObjects cooked in a cook session, and write their data to a database at the end of the cook; the databa ...

Incorrect Level Instance Bounds with non-trivial transform

From licensee: The streaming bounds of an instantiated level instances are incorrect in the world partition editor. When the bounds are computed for a level instance during FLevelInstanceActorDe ...

"Override Function" search box in the Blueprint Editor does not match actual function name (only its display name)

This is a quality-of-life issue for UE users. The issue was also detailed by the UDN user in a video in the linked UDN case. The Blueprint Editor provides an "Override Function" functionality in th ...

Skeletal Mesh reduction clamps UVs at 1024

UAssetManager::ChangeBundleStateForPrimaryAssets: Performance: Avoid canceling loads in progress when new bundles added and the in progress bundles are kept

UAssetManager::ChangeBundleStateForPrimaryAssets allows adding new BundleNames to the list of BundleNames loaded for a PrimaryAssetId. Each BundleName specifies a BundleEntry with a list of assets. ...

Sequencer fails to play anim sequences on linked anim instances when an Additve/Layered FKControlRig track is active

Animations can't be played with Sequencer via slot nodes in linked anim graphs when an additive/layered FK Control Rig is active.  This is because adding an FK Control Rig changes the anim instance ...

Blueprints break when implementing a duplicated BP interface along with the original

When duplicating a blueprint interface, the GraphGuids of the original BP interface's function graphs are unchanged: function graphs across the two BP interfaces now have the same GraphGuid. This is ...