Unreal Engine Issues
Unreal Engine Issues
No scroll bar is created when the Collision Preset section of Project Settings is expanded
Tools - Mar 15, 2015No scroll bar is created when the Collision Preset section of Project Settings is expanded. Clicking an element in the Preset section does not add the scroll bar. Collapsing the section and re-exp ...
Random Number Generated in Constructor Returning Different Value on Begin Play
UE - Gameplay - Jan 13, 2016When generating a random number using FMath::RandHelper() in the constructor of an actor, attempting to print that same number on BeginPlay returns a different value than the constructor. However, ...
Set Actor Scale 3D Not Functioning as Expected
UE - Gameplay - Blueprint - Jan 12, 2016Using Set Actor Scale 3D in the Construction Script is not functioning as expected. If you set the scale to 1,1,1, you are still able to freely scale an instance of the object in the scene. However, ...
Updates to DesiredFocusWidget for a UserWidget are not propagated to existing instances of it inside the WidgetTree of other widgets
UE - AI Workflows - UI Systems - Nov 17, 2025This issue has been reproduced in UE 5.3 to 5.7 and source versions. A repro project is available. Below are the findings from an initial investigation of the problem. Normally, when a UserWidget p ...
Selecting a text field that is displaying "Multiple Values" will rewrite all values for all selected entities to "Multiple Values"
Tools - Jun 14, 2015Selecting a text field that is displaying "Multiple Values" will rewrite all values for all selected entities to "Multiple Values". Reproduced in 4.7.6, 4.8.0, and Main (//depot/UE4/Promotable-CL-2 ...
Custom iOS icons don't appear on device for Windows BP projects (Binary Build)
UE - Platform - Mobile - May 4, 2018iOS icons have stopped working for Windows BP projects again; this does not occur on Mac. It also does not occur when using a source build from p4 (only on a binary build from the launcher). Note t ...
Pick New sprite option becomes unavailable if you change the view options
Tools - Jan 4, 2018The Pick New sprite option becomes unavailable if you change the view options to either tile or column when working with the keyframes of a 2D animation. This issue affects the project indefinitely ...
User Play Space Rot does not change anything in Client Play Camera Shake
UE - Gameplay - Jun 11, 2015User does not change anything in Client Play Camera Shake. Reproduced in 4.8 and Main (//depot/UE4/Promotable-CL-2581498). This is a Regression: it works as expected in 4.7.6 ...
Level Sequence spending long time validating assets
UE - ACT Character - Control Rig - Aug 31, 2026Hi After migrating our animation project from 5.7 -> 5.8 we notice that some level seqeunces take much longer to save (during validation stage). This issue only exhibits when using control rigs in ...
Editor movement control regression
Tools - Jul 8, 2015Using Ctrl+Drag in 4.8 will not affect the location of selected actor if the viewport camera is facing away from selected actor. In 4.7.6 the actor would travel along the X axis even if the camera ...