Unreal Engine Issues
Unreal Engine Issues
Paper2D Sprite doesn't cook deterministically
UE - Foundation - Core - Cooker - May 11, 2017The "DummySprite" asset in Plugins/Paper2D doesn't cook deterministically, and as such is always included in patches. ...
int64 UProperty with ExposeOnSpawn meta tag won't compile.
UE - Foundation - Cpp Tools - UnrealHeaderTool - Mar 25, 2020int64 UProperty with ExposeOnSpawn meta tag won't compile from a C++ UUserWidget class. ...
Crash in Network Prediction during PeriodicDamage GameplayEffects Test
UE - Networking - Jan 27, 2021Crash during Periodic Damage test for Gameplay Abilities system in the Network Prediction plugin, when both plugins are enabled. Related to a null GameInstance. ...
TickComponent and PostPhysicsTick in SkeletalMeshComponent can cause simultaneous read/write access
UE - Runtime - Animation - Jan 18, 2023When a SkeletalMeshComponent is restarted by calling in order of SetSimulatePhysics and SetComponentTickEnabled, the TickComponent and EndPhysicsTick are executed simultaneously. As a result, the ...
Mac OSX Shader compiling crash When Editor Launched from Symlink
UE - Platform - Apple - Nov 10, 2016When the editor is launched via Symlink on a Mac, the Material Editor will crash when compiling or when building lighting on a level. This does not occur if the editor is launched from an external d ...
When changing a variable of a component in an attached Actor, the variable becomes read-only
UE - Gameplay - Aug 1, 2018Changing a variable of a component with an instance of BP derived from StaticMeshActor or SkeletalMeshActor attached to another actor will cause that variable to be read-only. It did not reproduce w ...
Conditional crash when a DragAndDrop operation is done betweeen Data Layers.
UE - World Creation - Worldbuilding Tools - Data Layers - May 8, 2024A crash occurs to the engine as when we when have unreal as a backgroud task, and we try to drag and drop a layer to another by selecting the layer visibility button. ...
Foliage Painted on BSP is Deleted after Building Geometry
UE - World Creation - Worldbuilding Tools - Foliage - Dec 15, 2014After painting foliage meshes on a BSP surface and rebuilding the level (more specifically the geometry), the meshes are deleted. This bug is especially nasty because you cannot Ctrl+Z after buildi ...
All animation are reasmpled to be 30FPS regardless how much framerate the original one is
animation resampling should not work by default ...
Flickering windows with four player PIE on Laptop Geforce cards
UE - Graphics Features - Oct 1, 2015Flickering windows with four player PIE on Laptop (mobile) Geforce cards. See attached video, or video link from the answerhub thread. It happens repeatedly and very frequently. ...