Unreal Engine Issues
Unreal Engine Issues
Default value lost when placing a struct within a user defined struct
UE - Gameplay - Blueprint Editor - Sep 18, 2017The default value of a child struct that is added to anther struct is not retained in the parent. An example would be if the child struct contains an integer, the default value when added to another ...
Importing an Alembic File with "Skip Empty Frames at Start of Alembic Sequence" Enabled Causes Crash
OLD - Anim - Jul 13, 2018Importing an Alembic File with "Skip Empty Frames at the Start of Alembic Sequence" Enabled Causes Crash. Found in 4.20 Preview 5 CL# 4173640 and 4.21 CL# 4207835 ...
Android launch images change size while onscreen
UE - Platform - Mobile - May 4, 2020This was reproduced both in Match 3 and a new BP project with a custom launch image. Note that on Pixel 2 the BP project behaves a little differently than Match3. It displays in full size, then s ...
UMG: RetainerBox with zero-size child returns incorrect LayerId on OnPaint()
UE - Editor - UI Systems - Nov 4, 2025When a RetainerBox contains a child that for some reason has a desired size of zero, its OnPaint() method can incorrectly return LayerId 0. Afterwards, widgets further down the hierarchy can base th ...
mobile DOF setting is not applied when play on standalone mode
UE - Platform - Mobile - Feb 20, 2023In 5.0, the mobile depth of field settings were correctly reflected when running standalone. However, in 5.1, the DOF doesn't appear to be working correctly and the focus is off, causing a blurry im ...
Launcher and Editor context / dropdown menus do not display correctly on upcoming Windows 10 build
UE - Editor - UI Systems - Slate - Oct 3, 2016A few users using the Windows 10 Insider Preview have found that after a certain point in the Prerelease builds, starting at 14915 it seems, the Unreal Editor and Epic Games Launcher context menus h ...
Crash calling destroy actor for Geometry Collection while it's simulating
UE - Simulation - Physics - Destruction - May 12, 2020Crash occurs when user call Destroy Actor on a Geometry Collection Actor. This seems to only occur while the actor is simulating. If called while on the ground, it doesn't seem to occur. ...
Disabling "Support Stationary Skylight" Causes Crash With Forward Shading Enabled
UE - Graphics Features - Jul 30, 2018Disabling 'Support Stationary Skylight' crashes if you select anything in the editor when Forward Shading is also enabled. Working as expected 4.19 4033788 Found in 4.20 CL# 433996 and 4.21 CL# 42 ...
UMG Designer preview: Incorrect resolution on Samsung s8 and s9
UE - Editor - UI Systems - Jul 30, 2018"By default, the device profile for android_high (which is used by phones such as the galaxy s8 and s9) gives a scale factor of 1.0 resulting in 1280x720. When choosing a ~2:1 device such as the gal ...
Crash when creating a USkeletalMeshComponent inside a UMotionControllerComponent
UE - Anim - Runtime - Jan 11, 2023This is not a Regression. Tested in //UE5/Release-5.0 CL23058290. Crash occurs when creating a USkeletalMeshComponent inside a UMotionControllerComponent when applied to a Character. Commenting out ...