Unreal Engine Issues
Unreal Engine Issues
Get Instances Overlap returns overlap outside of collision bounds
OLD - Anim - May 17, 2017Get Instances Overlap returns overlap outside of the collision bounds. This effects the Instanced Overlapping Box and Sphere. It is also reproducible with engine assets replacing the Fencing mesh. ...
Customizations that use FDetailPropertyRow::CustomWidget and set the visibility attribute do not honor it
UE - Editor - Verse Class Editor - Oct 31, 2023Customizations that use FDetailPropertyRow::CustomWidget and set the visibility attribute do not honor it. A Customization set up like the below, for instance, will not honor the Visibility in red d ...
FDetailGroup::AddGroup does not correctly apply the default expansion state for DetailGroups
UE - Editor - Verse Class Editor - Feb 10, 2026There is a bug affecting DetailGroups in the engine. When adding child DetailGroups to a parent DetailGroup, the expansion state does not behave as expected and ignores the flags intended to control ...
Misaligned sampling in UI Material with with CustomStencil
UE - AI Workflows - UI Systems - May 19, 2025The output of the CustomStencil node in a User Interface material does not align with the viewport dimensions. Toggling fullscreen/windowed mode (F11) causes the offset to reappear, so scaling the n ...
Use mouse for touch enables gesture action on button which makes the button to lost focus to that the button fires onreleased event
UE - Editor - UI Systems - Slate - Mar 20, 2019When Use mouse for touch is enabled, the button fires onreleased event. Here is what I investigated. Use mouse for touch enables gesture action in the button that leads to LongPress gesture fires ...
UCheatManager::ToggleDebugCamera() causes crash
UE - Gameplay - Oct 11, 2018Toggling the Debug Camera with the UCheatManager::ToggleDebugCamera() function in a PlayerController derived class causes a crash. Tested in 4.19.2 (CL - 4033788), 4.20.3 (CL - 4369336), 4.21 (CL ...
Camera Information across two Matinee Data groups do not persist from one to the other.
Tools - Aug 12, 2015A user is trying to share data between two matinee actors. After creating a new Interp Data and creating a matinee for it, I add some animation to one of the two cameras in a camera group. I then ad ...
When the Initial Position of an Animation Asset is entered outside the expected range, the animation gets stucked and does not refresh.
UE - Runtime - Animation - Mar 18, 2024The animation gets "corrupted" when the Initial Position value has an invaildad value. In this case, this means that the Initial Position value is outside the range of the duration of the Animation. ...
Cannot change the Strength value on a Physics Constraint in the Viewport Details panel
UE - Simulation - Physics - Jan 5, 2017Cannot change the Strength value on a Physics Constraint to anything other than the default value in the Viewport Details panel. When changed the editor will pause and replace the value with — This ...
[CrashReport] UE4Editor_UMG!UPanelWidget::GetChildIndex() [panelwidget.cpp:52]
UE - Editor - UI Systems - Nov 10, 2017This is a trending crash coming out of the 4.18 release. User DescriptionsI did click on compile on a widget an UE4 crash Source Context 46 int32 UPanelWidget::GetChildIndex(UWidget* Conten ...