Unreal Engine Issues
Unreal Engine Issues
SSR doesn't reflect Skydome Mesh/Material correctly in Vulkan mobile preview
UE - Platform - Mobile - Systems - Aug 4, 20255.6[Image Removed] 5.5[Image Removed][Link Removed] ...
Animation to Ragdoll: Character blinks for 1 or more frames
UE - Simulation - Physics - Mar 4, 2016Character is not rendered for frame between Death animation and conversion to ragdoll physics In the linked movie, if you pause at the 34 second mark and play frame by frame, you will see the chara ...
Crash When Typing a Node Comment and Hovering Over the Alignment Option
Tools - Apr 5, 2016Error message: Assertion failed: ParentIndex != INDEX_NONE [Link Removed] [Line: 512] Source Context: 499 } 500 501 return Menu; 502 } 503 504 ...
USD Stage Import - Spawned actors by USD importer are not saved in level
UE - Editor - Open File Formats - USD - Jul 20, 2023we ran into an issue with USD Importer plugin for Unreal 5.2. When you import a USDStage with the "actors" import option - which respawns the newly imported actors into the current level. However, ...
On the Details Panel of Niagara Function Inputs, the Type selector does not show "Static" types.
UE - Rendering - Architecture - Niagara - Apr 7, 2025Consider a Niagara Function or Module Script containing a Static Switch node. If the "Expose as Pin" option is enabled for its selector variable, an input pin with type "static bool" appears. In one ...
"Scale for <ComponentName> has a component set to zero, which will result in a bad body instance" warning spam when moving actor instance even with Collision Profile overriden to "NoCollision"
UE - Runtime - Simulation - Jan 12, 2026When a StaticMeshComponent has a scale component of zero in WorldSpace (after accumulating with the hierarchy from the root to it), function UPrimitiveComponent::OnCreatePhysicsState() logs the warn ...
SteamSockets not setup to handle Client/Session ID handshakes
UE - Online - Jan 13, 2023Repro Rate: 3/3 This is a live issue where the customer claims that the SteamSockets implementaton is not setup to handle the new Client and Session Id setup that was introduced in 5.1. This issue ...
Panini Lens Projection and Post Process buffers broken
UE - CAPT - Color Pipeline and Rendering - Mar 9, 2026Panini Lens Distortion does not appear to affect some buffers (SceneDepth, CustomDepth, WorldNormal, etc.) consistently. These buffers behaved correctly in 5.3 ...
RuleProcessor is not listed in the Window menu in 5.4
UE - Editor - Jun 11, 2024Since CL-28416011, Sections in Window menu are broken and the RuleProcessor can not be registered in the menu. (See attached imanges) Following workaround restores the sections and fixes the issue. ...
No alpha to coverage for ES3.1 and mobile Vulkan
UE - Platform - XR - Jan 29, 2020MSAA is not applied to masked textures/materials. Testing blocked in MAIN 4.25 @ CL 11144351 by [Link Removed] ...