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 ...

Chaos Vehicle wheel output data does not include the wheel forces

UE - Simulation - Physics - Oct 5, 2023

This is more of a feature request than a bug. From a UDN customer. The output from the simulation to the game thread does not include the force that has been applied at each wheel. It would be pref ...

LLM PlatformProcessMemory calculation ignores VRAM, and its calculation of how much memory is used by the process is too low

UE - Foundation - Sep 29, 2023

FLowLevelMemTracker::TickInternal() the ELLMTag::Total (and therefore ELLMTag::Untracked) memory amounts are calculated based only on the result of FPlatformMemory::GetStats(), which on the Windows ...

Properties not serialized when moving actor/component depending on unrelated specifiers

UE - Framework - Blueprint - Sep 25, 2023

When an actor is moved on the level editor viewport, it is reconstructed along with its components, which at first makes their properties reset to their default state. Thankfully, this does not happ ...

Fractured Geometry Collection triggers a crash when colliding with an Animation Blueprint with a Rigidbody Node

UE - Simulation - Physics - Character - Sep 25, 2023

This is not a regression. Tested in //UE5/Release-5.2 CL26001984 The editor crashes when a physics asset of an animation with rigid body collides with geometry collection. ...