Unreal Engine Issues
Unreal Engine Issues
Crash from FGameplayDebugger when pressing PIE after Dragging PlayerController to Empty Player Component
UE - AI - Jun 16, 2015A crash occurs after dragging an 'Empty Character' actor into the viewport and attempting to add the 'PuzzlePlayerController' as a component by dragging it into the components list via the 'Details' ...
Crash Occurs When Setting Child Actor Class in Child Blueprint
UE - Gameplay - Blueprint - May 4, 2017A crash occurs when setting the Child Actor Class of an inherited child actor component. This is not a regression. It occurs in 4.14.3 CL# 3249277, 4.15.2 CL# 3416026, and 4.16 Preview 2 CL# 34155 ...
Component default data can be lost for a non-nativized Blueprint class that inherits the component from a nativized parent Blueprint class.
UE - Gameplay - Blueprint - Sep 5, 2018This is a regression that was introduced by the fix for [Link Removed]. The fix makes an invalid assumption that instances of components whose archetypes are inherited by a non-nativized child Blue ...
UUserWidget::NativeDestruct may be called on a preview widget if PIE is started while the widget needs compilation
UE - Editor - UI Systems - Jun 4, 2018By starting PIE while an uncompiled widget is open in the widget editor, it's possible to trigger a call to NativeDestruct on the preview widget. This is especially dangerous because NativeConstruct ...
Memory-only FMOD assets cause 'unable to find cached package' spam in log
UE - Foundation - Core - Cooker - Jan 23, 2017When loading individual events/sounds in an FMOD bank file, the cook will emit a warning for each asset which pollutes the log file with superfluous messages. This is because the actual event/sound ...
Sockets are scaling with imported transformation and passing scaling to attached
OLD - Anim - May 4, 2015When Skeletal Meshes are imported with a uniform scale, the attached socket will take these scales and pass it along to any object attached to the socket. This is particularly obvious for users who ...
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 ...
Constraints are broken when capsule component height changed
UE - Simulation - Physics - Jul 20, 2015James: I think we currently recreate the capsule body when you change dimensions, should just change the shape instead. – DisableCollision is reset if constrained Capsule Component height is change ...
Linear Spline Point Type doesn't distributed over a linear value
Tools - Nov 3, 2015Linear Spline Point Type doesn't have expected result User Description: I was following a tutorial from Dokipen (Tutorial) about using spline to create linear arrays. Everything is working fine f ...
Add Point node used with an InputKey of 0 or 1 will crash the editor on bp compile
Tools - Nov 29, 2016Add Point node used with an InputKey of 0 or 1 will crash the editor on bp compile User Description: Unreal version 4.14 crashes every time that you use spline component and try to add the point 0 ...