Unreal Engine Issues
Unreal Engine Issues
Clicking the Add Variable button in a Struct that is referenced as two inputs in a function that is called in an Actor Blueprint's Construction Script causes a crash
UE - Gameplay - Blueprint - Jun 28, 2015Clicking the Add Variable button in a Struct that is referenced as two inputs in a function that is called in an Actor Blueprint's Construction Script causes a crash. This does not occur in the Even ...
Crash when using StepToNextShot / PreviousShot with sequencer
UE - Anim - Sequencer - Jul 24, 2018A crash occurs when you press the Shift key + [.] (Period) key after double-clicking on one of the arranged level sequences in the master sequence. The cause is ActiveTemplateIDs of FSequencer. The ...
Crash changing variable type from Object Reference to Actor Soft Object Reference
UE - Gameplay - Blueprint - Oct 3, 2017REGRESSION: No, this occurs as far back as 4.16. Crash occurs when the user changes a variable type from Object Reference to Actor Soft Object Reference. ...
Editor Crashes When Updating Captures on Sphere Reflection Captures
UE - Graphics Features - Feb 20, 2017Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 633] Array index out of bounds: -1 from an array of size 11 Source Context: 200 CubemapArray.Updat ...
Translucent Unlit Materials render at incorrect Z depths depending on camera
UE - Graphics Features - Sep 15, 2014Sprites which are layerd on top of one another in a tight pack and have a material set to TranslucentUnlitSprite Material will disappear while moving the camera above and below the editor's 0 grid. ...
Ensure in IWCE copying a component and its child at the same time
UE - Gameplay - Components - Jul 31, 2017REGRESSION: Yes, does not occur in 4.16.3 Ensure occurs in in-world component editing, when the user selects and copies a component and its child at the same time. This doesn't occur if these comp ...
Crash at compile time when using a VariableSet node with a local variable created by pasting a private property
UE - Framework - Blueprint - Oct 7, 2025When a property is created in this way, a local variable with a Private flag is generated. Since such a variable is generally not desirable, it would be better to remove the Private flag upon pastin ...
When ParallelExecutor is enabled, Japanese build output of VisualStudio garbled
UE - Foundation - Cpp Tools - Sep 19, 2018From UE4.20, Japanese build output of VisualStudio garbled. Below is a comparison between 4.19 and 4.20. ・4.19.2 1>------ すべてのリビルド開始: プロジェクト:MyProject3, 構成:Development_Editor x64 ------ 1> Clea ...
CharacterMovementComponent: make crouching behavior compatible with custom gravity direction
UE - Gameplay - Components - Feb 20, 2024CharacterMovementComponent has recently received support for custom gravity directions. Crouch logic needs to be updated to account for custom directions. Currently, crouching logic in CMC assumes Z ...
CameraRig_Rail actor does not show last index for preview mesh
UE - Anim - Sequencer - Feb 19, 2025Do not show the last index in the preview mesh display of the CameraRig_Rail actor. The reproduction test case generates a ring of rails, but only the last index is not displayed. Recommended Cod ...