[AI] SmartObjectPersistentCollection produces errors during Map Validation

UE - AI - SmartObject - Nov 18, 2025

SmartObjectPersistentCollection in 5.6 and later now give errors when the map validator runs due to referencing spatially loaded actors. This was working per licensee in 5.5. There was a change from ...

Motion warping doesn't enable if a target is added on frames subsequent to the start of the warp notify

UE - Anim - Gameplay - Nov 18, 2025

The issue is that URootMotionModifier_Warp::Update will disable the warp if there is no target found for it. But there's no functionality to turn the warp back on if a target is then set on a later ...

Iris - Server fails to send client initialization RPCs after seamless travel if the client finishes travelling first

UE - Networking - Iris - Nov 18, 2025

During seamless travel, when a client loads into the destination level it will call APlayerController::ServerNotifyLoadedWorld, including when it finishes the travel before the server. When the serv ...

Skeletal Meshes created in Unreal with only a root bone do not export correctly

UE - Editor - Content Pipeline - Import and Export - Nov 17, 2025

Unshelving a file from Unreal locks unreal. Killing process leaves the file locked and can't be checked out

UE - Editor - Workflow Systems - Nov 17, 2025

Unreal currently locks any assets that are loaded. Actions such as "revert" from within the editor handle this properly by unloading the asset but unshelving from within the editor does not respect ...

Remote members not correctly removed from lobby

UE - Online - Nov 17, 2025

While the OnLobbyMemberLeft event does seem to be fired correctly, the remote member will still be in the lobby's "Members" map, and its data can still be found in FLobbyClientData::MemberDataStorag ...

Control Rig Box Selection Innacurate

UE - Anim - Rigging - Control Rig - Nov 17, 2025

When useing marquee select on controls in the rig, their on screen size determines how likely they are to be included in the selection which isn't a reliable enough method for animators. Our workaro ...

Crash at Skeleton Remapping

UE - Anim - Runtime - Nov 14, 2025

The details are in the EPS : [Link Removed] ...

Missing UV Clamping or Clear in SunAlphaPS_Mobile

UE - Platform - Mobile - Nov 13, 2025

In: void SunAlphaPS_Mobile( float2 InUVs[8] : TEXCOORD0, in FStereoPSInput StereoInput, out HALF_TYPE OutColor : SV_Target0 ) { OutColor =  SunUnBias(SunShaftAndDofTexture.Sample(SunShaftAndDo ...