Blueprint's location reset to 0, 0, 0 after being detached in a network environment

UE - Networking - Apr 24, 2017

Attaching / Detaching a blueprint actor to a player in a network environment causes location errors when the detach occurs. Even without the attach events being replicated or the blueprint's movemen ...

Sphere Trace Distance Field GPU function hides necessary Collision DI input

UE - Niagara - Apr 14, 2021

The collision DI input is a hidden input, but is necessary for compilation. The input node should likely be marked as required, not hidden.  ...

RVT output from Landscape Height gets incorrect mip cache loaded

UE - Rendering - Architecture - Oct 13, 2021

I test it for more information for your reference:It happens only when a Landscape *Height *was output to the RVT, other Landscape's maps like BaseColor are all fine, as well as Height output from o ...

Unable to Assign Material to Multiple Selected Mesh Components in Scene

Tools - Sep 15, 2016

When you try to apply a material to multiple mesh components of an empty actor dragged into the scene; the material is only applied to one. EXTRA NOTES This issue won't occur under these circumsta ...

[AI] Spatially loaded objects in a WP map that are unloaded do not contribute to the navmesh when Build Paths is run

UE - AI - Navigation - Jun 23, 2025

Using Build Paths does not create a navmesh that also includes any Actors or Objects that are unloaded and spatially loaded. The navigation system appears to load the world within the navigable boun ...

Unable to change View Options from the menu contained inside of an asset selection dropdown

Tools - Dec 16, 2016

Using the View Options option inside of an asset selection dropdown window does not work. None of the options, other than the Scale slider under Thumbnails, will make any changes and the window is i ...

Packaged Dedicated Server will not regenerate navmesh around instanced mesh

UE - AI - Jun 6, 2019

The foliage instanced mesh, as well as ISM and HISM components both appears to be unable to export navmesh data for generation once we introduce a change in the contents. This error only shows up in ...

Crash when trimming animation and then undoing action

UE - Anim - Runtime - May 30, 2023

Repro rate: 3/3 times This is a regression as the issue does not occur in 5.1.1  ...