Unreal Engine Issues
Unreal Engine Issues
Reference to material collection by Index instead of by Name causes inconsistency
UE - Rendering Architecture - Materials - Feb 21, 2024A UDN user reports materials referincing parameter collections by index instead of by name. The problem manifests itself when rearranging the order of parameters belonging to collections, as the edi ...
PriortizeCategories doesn't work with sub categories
UE - Editor - UI Systems - Feb 20, 2024See UDN: [Link Removed] ...
Cumulative Patching does not work with Pak signing
UE - Foundation - Feb 20, 2024Cumulative patching is implemented by copying the generated pak files during staging of the base and each patch to the Releases directory. When creating a patch, all of the pak files from the releas ...
Copied Actors in World Partition Levels Maintain References to Actors They Are Copied From
UE - World Creation - Worldbuilding Tools - World Partition - Feb 19, 2024When an Actor is duplicated in the editor inside a world partition level it maintains references to the Actor it is a copy of. This can cascade, i.e. Actor C, which is a copy of Actor B which is a c ...
MustBeMappedGUID errors after several seamless travels
UE - Networking - Feb 19, 2024This seems to be the same issue as was reported in [Link Removed], as enabling net.ResetAckStatePostSeamlessTravel resolves the issue. However, it was recently reported that disabling net.FilterGuid ...
Blueprint "Diff Against Depot": Restoring an instanced object results in reference to the object in the temporary diff asset
UE - Gameplay - Blueprint - Feb 19, 2024When diffing a blueprint against depot via the Content Browser context menu action "Revision Control > Diff Against Depot", restoring an instanced object property from the depot version results in t ...
Nanite enabled Geometry Collection is not simulated by ChaosCache in package application
UE - Simulation - Physics - Feb 19, 2024When using ChaosCacheManager to simulate destruction of a GeometryCollection, destruction is not simulated when Nanite is ON for the GeometryCollection. In the editor, destruction is simulated rega ...
StreamableManager completion callback can happen after being canceled in same frame
UE - CoreTech - Feb 16, 2024FStreamableHandle (used as part of the FStreamableManager system) has a CancelHandle function that stops it from calling any completion callbacks related to that handle (it could cancel the load req ...
MoviePlayer loading screen with FLoadingScreenAttributes::bAllowEngineTick results in high DeltaSeconds tick post-playback
UE - Gameplay - Feb 16, 2024IGameMoviePlayer playback of a movie during loading screen lets you set bAllowEngineTick = true as a parameter. This will make FDefaultGameMoviePlayer manually tick the engine: if (GEngine && bAll ...
UNetDriver server-side hitch results in ActorInfo->NextUpdateTime far into future
UE - Networking - Feb 16, 2024A high UWorld::Tick DeltaSeconds (i.e. GameThread hitch) results in a high UNetDriver::TickFlush DeltaSeconds. This DeltaSeconds can high (many seconds) if the hitch is long. This value then affects ...