Unreal Engine Issues
Unreal Engine Issues
Crash when splitting a UDS pin on a collapsed graph
UE - Gameplay - Blueprint - Jan 27, 2017I came across this bug while attempting to verify UE-41073. That bug is verified, but I accidentally added the struct into the collapsed node without going into the collapsed graph and split the col ...
Cannot convert procedural mesh to static mesh with only 3 verticies
OLD - Anim - Feb 23, 2017It is not possible to use the Create StaticMesh button to create a Static Mesh from a Procedural Mesh with only 3 verts. The following if check is the reason:if (RawMesh.VertexPositions.Num() > 3 && ...
Crash in Debug Camera (patch provided in comment !)
UE - Gameplay - Feb 12, 2019Hello, A licensee has reported us a crash in DebugCameraController / DebugCameraHUD. It is due to a missing check in ADebugCameraHUD::PostRender() of SelectedActor set in ADebugCameraController ...
Error during packaging if nativizing a blueprint that contains a TMap with a UserDefinedEnum as a key
UE - Gameplay - Blueprint - Jun 17, 2019Certain Map container calls (e.g. Find, Add) will fail to compile at packaging time if a Blueprint class containing a Map variable with a user-defined enumeration as the key type is nativized. This ...
Instanced static meshes fire an erroneous performance assert about loose parameters.
UE - Graphics Features - Sep 4, 2019"This ensure is intended to catch regressions where rendering programmers add a loose parameter to LocalVertexFactory, breaking dynamic instancing on regular static meshes. InstancedStaticMeshes c ...
BP timelines: when converting internal curve to external, the external curve isn't used until BP is recompiled
UE - Gameplay - Blueprint Editor - Aug 28, 2023Blueprint timelines: when converting an internal curve to an external curve asset, the curve asset's data isn't used until the blueprint is recompiled. This is confusing as there is no indication th ...
'GetClassDefaults' Can Cause Blueprint To Become Modified When Unrelated Blueprint Is Compiled
UE - Gameplay - Blueprint - Sep 22, 2023The stems from a really old change (CL 2948683) to fix [Link Removed]. Compiling ObjectA will call RefreshExternalBlueprintDependencyNodes on its dependent BP, ObjectB_ReferencesA, which reconstru ...
XAudio2 DestroyVoice call causes significant hitching on some architectures
UE - Audio - Aug 10, 2015Another thread: https://answers.unrealengine.com/questions/241358/amd-cpu-very-low-performance-because-ixaudio2sourc.html Note: This not a regression and has existed since our first implementation ...
Using Show Mouse Cursor and Ejecting Prevents Actors from Being Moved
Tools - Mar 31, 2016When you have the mouse cursor set to show in game, if you use shift+f1 to unlock the mouse, eject, and then attempt to click and move an actor using the transform gizmo, you are unable to do so. S ...
Static Mesh Editor: Give options for drawing complex/simple collision
UE - Simulation - Physics - Mar 13, 2017The collision mesh and the display mesh are often similar enough to be difficult to differentiate, and there is currently no way to view the collision wireframe without the display wireframe as well ...