MPCook: Fix replication of UObject::CookAdditionalFilesOverride

UE - Foundation - Data Pipeline - Cooker - Oct 19, 2023

MPCook relies on global data that is accumulated during package cooks on CookWorkers be replicated to the CookDirector. Some global data that is accumulated during package cooks is CookAdditionalFi ...

Non-existing config file loading could cause memory leak

UE - CoreTech - Oct 19, 2023

The cause of this problem is the Engine has code paths which register a new allocated object to Map without deleting the previous object. In the repro project, whenever hitting Space Bar, the level ...

Using the end of the curve as a weighted tangent does not yield the expected value.

UE - Anim - Runtime - Oct 16, 2023

When changing the tangent value, the last value is sometimes not 1.0 [Reproduce sample project] [Link Removed] ...

CA_VALID_POINTER and CA_CHECK_RETVAL static analysis annotations broken

UE - CoreTech - Oct 13, 2023

We had some code using the CA_VALID_POINTER and CA_CHECK_RETVAL annotations which had been working fine up until the 5.3 engine release. In 5.3, we started getting the following compile errors in a ...

Montage Editor calls NotifyEnds of AnimNotifyState even when paused

UE - Anim - Gameplay - Oct 13, 2023

In the Animation Montage Editor, NotifyEnd is unexpectedly called when a time marker is in the middle of an AnimNotifyState and the animation preview gets paused. Because the Animation Montage Edito ...

Compiling Blueprints breaks socketed attachments of actors attached to non-root components

UE - Gameplay - Blueprint - Oct 12, 2023

When blueprints are compiled, instances of those blueprints have their attachments detached and then reattached. Reattachments always occur on the RootComponent regardless of which component they we ...

FTickTaskLevel::RescheduleForIntervalParallel Crash

UE - World Creation - Worldbuilding Tools - Oct 11, 2023

Short description from Licensee (attached UDN has more info):When streaming a level in and/or out (out especially in World Partition due to the bRequireFullVisibilityToRender variable usage) there i ...

MediaPlayer failed to be open on Mac and IOS

UE - Platform - Apple - Oct 9, 2023

Plugin dependencies causing RI parameter initialization failures (UDN)

UE - Niagara - Oct 6, 2023

Error on some Niagara emitters using the WindForce module: LogNiagaraEditor: Error: Invalid input type found while attempting initialize new rapid iteration parameters. Function Node: /Game/FX/Expl ...

Feature request: named pak files/chunks

UE - Foundation - Data Pipeline - Cooker - Oct 5, 2023

Priority note: 3 licensees requested so far Fortnite and some licensees have requested this feature, but it is a nice to have and has not yet been high enough priority to implement. Many teams rel ...