Unreal Engine Issues
Unreal Engine Issues
Large snap scaling causes meshes to scale 0
UE - Editor - Workflow Systems - Mar 3, 2016With a large snap scale just selecting the uniform scaler will make the content scale to 0. It seems like it is far too easy for meshes to accidentally be scaled to 0 with snap scaling. Another exa ...
ListView crashes when GlobalInvalidation is enabled.
UE - Editor - UI Systems - Slate - Jan 11, 2022Reverting to the fix in [Link Removed] (CL#17788567) will avoid the crash. ...
Calling a native interface function implemented by a non-nativized Blueprint asset from a nativized Blueprint asset will silently fail at runtime.
UE - Gameplay - Blueprint - Apr 29, 2020In the sample project we have a Widget Blueprint asset (SomeWidget) that implements a native interface (PrintSomethingInterface.h). However, in the DefaultEditor.ini file, we've also excluded all Wi ...
Custom Stencil Is Not Rendering In UI Materials
UE - Graphics Features - Nov 30, 2018Widgets with a UI Material that uses Custom Stencil will not render meshes with a set stencil. This is working as expected in 4.19 CL# 4033788. Found in 4.20 CL# 4369336, 4.21 CL# 4541578, and 4.22 ...
EditInlineNew UObject properties in a UserWidget Blueprint are reset to None when the Blueprint is compiled.
UE - Gameplay - Blueprint - Nov 4, 2016When a widget Blueprint that is derived from a custom UserWidget class containing a custom EditInlineNew UObject class property is compiled, any value that has been set in the UObject property is re ...
Making a Movie Scene Section Parameters struct in Blueprints will use the incorrect Can Loop values
UE - Gameplay - Blueprint - Jul 26, 2021Can Loop is the edit condition for two other values in the struct, and those will have values by default when the node is created, so Can Loop will be true in the make struct node. You can work ar ...
“None” option removed from “Preview Game Language” in Editor Preferences since UE 5.6
UE - Editor - UI Systems - Oct 24, 2025In Unreal Engine 5.5 and earlier, users could select “None” as the Preview Game Language in the Editor Preferences. Starting from UE 5.6, this “None” option is no longer available. Based on source ...
Virtual joysticks is not properly working when running multiple clients in PIE
UE - Editor - UI Systems - Slate - Nov 21, 2017When running multiple clients in PIE, It looks like first created viewport client handles every input event. I tried to narrow down the causes and found that it's because SlateApplication knows jus ...
Editable text box caret blinks slowly when manually setting focus
UE - Editor - UI Systems - Oct 18, 2018For some reason, it appears that manually setting the focus (whether it be user, keyboard, or both) on an editable text box in UMG causes the caret to blink slowly. However if you were to manually s ...
ChildAnimBP with different skeleton than parent does not show child skeletons anims in AnimGraphOverrides
UE - Anim - Runtime - Anim Blueprints - Jul 31, 2020Create a Parent AnimBP, add any animation to it. Then create a childAnimBP from Parent. In ChildAnimBP, go to TargetSkeleton (from class settings) to change a different skeleton. Then go to the Anim ...