Local Variable loses value after reference moves file location

UE - Gameplay - Blueprint - May 23, 2017

Local Variable loses value after reference moves file locations. This does not just affect construction scripts, following these steps with a function instead produced the same result. This issue do ...

Unable to load ASTC_HDR cube texture on IOS

UE - Rendering - Architecture - RHI - Jul 24, 2023

Project include a hdr texture "desert_outer_hdr" Texture size is 512*512*6, compressed with ASTC 6x6 HDR profile Stride should be: ceil(512/6)*16 = 1376 bytes However, if connect to xcode debug, ...

Twinmotion sign-in error when attempting sign-in inside app

TM - Core - May 18, 2026

Reported in SF [Link Removed] Attempting to sign into Twinmotion from within the TM 2026.1 editor results in a consistent sign-in error using the sign-in buttons. Initial sign-in during launch whe ...

Panini Lens Projection and Post Process buffers broken

UE - Rendering - Graphics Features - Mar 9, 2026

Panini Lens Distortion does not appear to affect some buffers (SceneDepth, CustomDepth, WorldNormal, etc.) consistently. These buffers behaved correctly in 5.3 ...

Project debug symbols are no longer included in crash reporter callstacks.

UE - Foundation - Core - Jun 15, 2015

Project debug symbols are not appearing in crash reports in 4.8. In 4.7.6, these symbols would be included in the crash reports, but in 4.8 these lines have no information other than the project nam ...

Motion Controller Axis input values over scale in increments of 2

UE - Platform - XR - Jan 8, 2020

The Axis input values for SteamVR motion controllers will increase exponentially by 2 from the moment the editor starts and every time the user enters VR Mode or does a Launch On (eg. Entering VR Mo ...

[CrashReport] UE4Editor_Kismet!FBlueprintGlobalOptionsDetails::CanDeprecateBlueprint() [blueprintdetailscustomization.cpp:5127]

UE - Gameplay - Blueprint Editor - Jul 19, 2017

This is a common crash affecting users in 4.15 and 4.16, affecting over 200 unique users so far. User Descriptionsattempt to import bp from example Source Context 5124 { 5125 // I ...

Shooter Game: High Rise is rendering Red Artifacts in Reflections and AO

UE - Graphics Features - Jun 11, 2015

When running Shooter Game, Highrise map, there are red artifacts rendered in the boundary areas between AO and Reflections. This is a regression from 4.7.6. In 4.7.6 - [Image Removed] In 4.8.0, Li ...

Difference in Shader Complexity view mode between Static Mesh and Painted Foliage Actors after Enabling 'Dbuffer Decals' in Project Settings

UE - Graphics Features - Oct 19, 2016

The 'Shader Complexity' view mode is rendering differently between regular Static Meshes and Painted Foliage instances after enabling 'DBuffer Decals' The user is reporting that this does not seem ...

Sequencer in packaged VR project does not appear to work when using sequence player on begin play

UE - Anim - Sequencer - Sep 27, 2016

Sequencer in packaged VR project does not appear to work when using sequence player on begin play. The HMD no longer appears to be affected by sequencer after the project has been packaged out ...