Unreal Engine Issues
Unreal Engine Issues
Default Values missing from Local Variables in Blueprint Actor Construction Script
UE - Gameplay - Sep 19, 2019Specific to the Blueprint Construction Script, Local Variables cannot have their value set in the Editor, because the "Default Value" section of the Details tab will never appear. This only affects ...
Missing materials on the rear lights of library vehicles
TM - Content - Oct 24, 2025Reported in SF [Link Removed] The rear light material on Twinmotion library vehicles is not present on many vehicles in TM 2025.2. Confirmed affected vehicles are in the following categoriesCarsTw ...
Editor Crash when Add Client button is used
Tools - Jan 30, 2017If the "Allow late joining" option is turned on in Editor Preferences, using the Add Client button in PIE will cause a crash on Exit. Crash happens immediately if using VR Preview ...
Mutable references MetaHumans heads directly, but DNA Assets are private
UE - Anim - Mutable - Sep 18, 2025When we switched our project to 5.6.1 This error appeared on build. The compilation of the Mutable assets in the editor is not reporting any issue. ...
Adding HISM instance on a Dedicated Server causes a crash
Tools - Nov 14, 2018Adding an instance of an HISM on a dedicated server causes an assert. Regression?: No This occurred in 4.20 ...
OnSmartLinkReached Event Not Firing in PIE
UE - AI - Sep 20, 2016The OnSmartLinkReached event is not firing in PIE. This is a regression. In 4.12.5 the event fires as expected. Found in 4.13.0 CL 3106830 Reproduced in 4.14 Main CL 3129233. ...
VR Editor Taking Input From Wrong Controller in Foliage Painting.
UE - Editor - Workflow Systems - Nov 2, 2016When in Foliage Painting mode, the left trigger press causes the right controller to paint foliage instead of the left controller. This bug does not affect Landscaping or Mesh Painting. This is a r ...
(New) Capsule does not change in viewport to reflect new values entered in details Panel
UE - Gameplay - Player Movement - Sep 3, 2015Adding values in the details panel to a new Capsule Collision Component will not affect the Capsule in the CharacterBlueprint Viewport. *This only effects a new Capsule Collision added to a charact ...
With multiple Preview assets on one bone, only one appears in Skeleton Tree
OLD - Anim - Dec 23, 2016With multiple Preview assets on one bone, only one appears in Skeleton Tree. Regression: YES Working: 4.13.2 CL:3172292 Broken: 4.14.1 CL:3224400 ...
Ensure When Setting Simulate Physics of a Child Actor on the Server and Forcing NetUpdate
UE - Networking - Jan 5, 2017An ensure is being triggered when you set simulate physics on a child actor on the server and then force net update. Found in 4.14.2 CL# 3241561. Reproduced in 4.16 Main CL#3247538 ...