Unreal Engine Issues
Unreal Engine Issues
StreamableManager completion callback can happen after being canceled in same frame
UE - Foundation - Core - 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 ...
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 ...
Components added in Blueprint that want initialisation are not maintained by RerunConstructionScripts
UE - Gameplay - Blueprint - Feb 14, 2024When a native component that wants initialisation is added to a Blueprint actor in the Blueprint editor, the initialisation state of this component will not be correctly preserved by RerunConstructi ...
Nanite and mobile landscape don't have support for dynamic materials
UE - LD & Modeling - Terrain - Landscape - Oct 26, 2023On a landscape actor with Nanite landscape enabled, set the bUseDynamicMaterialInstance property on a landscape proxy and setup a BP to call SetLandscapeMaterialTextureParameterValue / SetLandscape ...
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 ...
ResavePackages Commandlet Consistently Crashes in 5.3 In Material PreSave
UE - Rendering Architecture - Materials - Feb 20, 2024Running the ResavePackages commandlet will consistently result in a crash. The callstack is here: Assertion failed: !IsRooted() [Link Removed] [Line: 265] UnrealEditor_Engine!UMaterialInterface::P ...
Auto Exposure Compensation Curve issue when switching from Manual to Histogram
UE - Rendering Architecture - Feb 21, 2024When switching the Camera's Exposure Metering Mode from Manual toHistogram, the exposure level resets and takes time to settle. The Licensee has a proposed code change that would fix this issue. Als ...
Create a "Input Device User Mapping Schema" of some kind for PC
UE - Gameplay - Input - Feb 13, 2024When you are playing a game on PC (especially local multiplayer) many developers want to change how input devices are "mapped" to different players. For example, a single player game might want the ...
PriortizeCategories doesn't work with sub categories
UE - Editor - UI Systems - Feb 20, 2024See UDN: [Link Removed] ...
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 ...