Unreal Engine Issues
Unreal Engine Issues
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 ...
Unable to edit double variable in property matrix
UE - Editor - Workflow Systems - Oct 2, 2023Since UE5.0, cannot edit double variables in property matrix. In UE4.27, it worked correctly and could be edited from the property matrix. This is because double variables are not supported in SProp ...
[CrashReport] UE4Editor-MetalRHI.dylib!FMetalDynamicRHI::RHICreateVertexBuffer - FSkeletalMeshVertexBuffer::InitRHI
UE - Graphics Features - Jul 27, 2017This is a common and longstanding crash on Mac. The callstack shares similarities to the Windows crash [Link Removed] and may be related. User DescriptionsMy PC is too Low Spec? Callstack from Lo ...
Ensure triggers when undoing change to newly created variable
UE - Gameplay - Blueprint - Sep 28, 2018Ensure will trigger when undo reverts text to default value. "This triggers an ensure because the undo ends up calling SKismetInspector::ShowDetailsForObjects(), which forces the keyboard focus to ...
Crash on garbage collection - Encountered 20 object(s) breaking GC Clusters assumptions.
UE - Foundation - Core - Aug 15, 2018Garbage collection crash during opening cinematic. Note after crashing and relaunching the game the saved file appears as 8% complete instead of 0%. Note this crash is also occurring with //UE4/D ...
Editor crash when adding mesh renderer elements in Niagara
UE - Niagara - Jul 8, 2025When adding multiple meshes to a Niagara Mesh Renderer Module, a check() will be triggered due to a mismatch in the number of Widgets and the number of Tooltip Widgets. ...
Circular Throbber does not appear to be affected when setting the tint
UE - Editor - UI Systems - Jan 25, 2016Circular throbber does not appear to change colors when changing the tint ...
Retainer box does not appear to respect the clipping settings for its contents
UE - Editor - UI Systems - Apr 2, 2018When placing a widget in a retainer box that has the clipping setting "Clip To Bounds - Without Intersecting" the retainer box ignores the clipping setting and clips the widget anyway. ...