Some Niagara Fluid systems are not visible in a packaged project

UE - Niagara - Jun 7, 2022

Previously packaging caused a crash with this system. This was fixed, but now the system is no longer visible when packaged. ...

InstancedStaticMeshComponent causes crash in editor compiled with ALLOW_DITHERED_LOD_FOR_INSTANCED_STATIC_MESHES set to zero

UE - Graphics Features - Nov 11, 2022

ALLOW_DITHERED_LOD_FOR_INSTANCED_STATIC_MESHES works without crashing in ue4.27. It appears that this code path is not maintained in ue5. ...

Route gamepad to second window setting is broken

UE - Gameplay - Input - Nov 11, 2022

The RemapControllerInput function call likely needs to be added back to the game viewport client as a fix.  ...

WorldPartition: Attached Actors within Level Instances save level offset bounds

UE - World Creation - Worldbuilding Tools - Level Instances - May 9, 2023

The proposed fix is implemented in CL 25389340 but needs further testing to make sure there are no issues caused by it. ...

WorldPartitionActorDescs for LevelInstanceActors are broken when migrating world partitioned level

UE - World Creation - Worldbuilding Tools - Level Instances - Jun 13, 2023

WorldPartionActorDescs will be restored to the correct properties when resaved. They can also be fixed by the WorldPartitionResaveActorsBuilder commandlet. ...

Behavior tree assets marked dirty when opening in subeditor

UE - AI - Aug 16, 2016

Found while I was fixing up other content, that Behavior Tree assets are being marked dirty by just opening them into sub editor. ...

Moving or renaming a file in the editor should execute a Perforce move command not a delete+add

Tools - Aug 31, 2016

Moving or renaming a file in the editor erases its perforce history. It should execute a move not a delete + add to fix this ...

Hot reload iteration time regression.

UE - Foundation - Core - Oct 19, 2017

Hot reload iteration times have been crippled ever since CL# 3332960, which was a fix for [Link Removed]. ...

IOS-Shipping memory managentment failed for std::string

UE - Platform - Mobile - Oct 8, 2018

[Image Removed] [Image Removed] [Image Removed] if strip with -x option, it will fix this issue. ...

InstancedStaticMeshes disappear in Shipping builds on mobile when affected by dynamic point lights

UE - Platform - Mobile - Aug 22, 2019

This ticket is to add the safe workaround for 4.23.1, with a more optimal fix coming in 4.24. ...