Unreal Engine Issues
Unreal Engine Issues
IOS force feedback strength does not increase
UE - Platform - Mobile - Jan 15, 2019Force feedback does not strengthen when expected on IOS. It stays the same regardless of where the pawn is on either the red or yellow squares. Tested on 9753_iPhone 7+ 12.0.1 and 16021_iPhone XS ...
The ConstructionScript not being called on drag
Tools - May 2, 2019The construction script for a custom actor blueprint does not execute after drag when the scene component is selected. Tested in 4.21.2 (CL - 5660361), 4.22.1 (CL - 6063286), 4.23 (CL - 6248266) ...
Niagara particles are culled when opaque material blend mode added
UE - Niagara - May 6, 2019Niagara particles are culled from far distances when materials with the Opaque Blend mode are applied to them. Tested in 4.21.2(CL - 4753647), 4.22.1 (CL - 6063286), 4.23 (CL - 6311794) ...
Crash when debugging project offscreen
UE - Graphics Features - May 30, 2019Running a project with the RenderOffscreen flag in the DebugGame configuration applied causes the debugger to crash. Tested in 4.21.2 (CL - 4753647), 4.22.1 (CL - 6063286), 4.23 (CL - 6674923) ...
4.24 GitHub Build compile error - fatal error C1083: Cannot open include file: 'SketchUpAPI/geometry.h': No such file or directory
UE - Editor - Content Pipeline - Datasmith - Exporters - Dec 10, 201912>e:\github\unrealengine\engine\source\programs\enterprise\datasmith\datasmithsketchupexporter\private\DatasmithSketchUpCamera.h(7): fatal error C1083: Cannot open include file: 'SketchUpAPI/geomet ...
Text type parameters show the same value after reload in duplicated actor
UE - Gameplay - Blueprint - Jan 4, 2021Issue occurs in both events and functions. Seems like it's only affecting Text, didn't notice this issue for other variable types. The original actor is working as expected. Only the duplicated one ...
JobObject appears to break /ZI pdb compiles
UE - Foundation - Cpp Tools - UnrealBuildTool - Mar 9, 2023It seems that the [Link Removed] UBT creates to ensure any child processes are terminated on close is somehow affecting the mspdbsrv process that cl is spawning and terminating it when cl is finishe ...
Crash when interacting with an Actor containing an Instanced Static Mesh that is in a Locked level
UE - Editor - Workflow Systems - Mar 30, 2023This is not a regression. Tested in //UE5/Release-5.1 CL23901901 Editor crashes with an assertion after interaction with an Instance Static Mesh component that is in a locked level. This doesn't af ...
Sequence thumbnails save with visual issues
UE - Anim - Sequencer - Aug 1, 2025[Link Removed] When camera tracks are activated, saving the sequencer results in captured anomalies: 1. Incorrect aspect ratio 2. Additional post-processing effects such as lens flare appear 3. ...
WorldToClip/ClipToWorld transform in materials not behaving as expected
UE - Graphics Features - Dec 19, 2025In 5.3, the specified code will return all 0 or very small as expected. However in 5.4.4 and onwards (also checked in 5.6.1 & 5.7.1), it returns very large numbers. ...