Unreal Engine Issues
Unreal Engine Issues
Water body constructor dirties actor
UE - Graphics Tools - Terrain - Water - May 29, 2024Modify gets called from AWaterBody constructor: WaterSplineMetadata->Reset(3); WaterSplineMetadata->AddPoint(0.0f); WaterSplineMetadata->AddPoint(1.0f); WaterSplineMetadata->AddPoint ...
Niagara Regression - Looping particle with Spawn Burst Instantaneous on time 0.0 flickers for a frame between loops
UE - Niagara - Jul 16, 2025Note: This worked correctly up to UE 5.4, but repros from UE 5.5 up to mainline latest. If a Niagara Emitter is set up with "Spawn Burst Instantaneous" on time 0.0, and the spawned particle(s) have ...
Copy-pasting custom property nodes (ControRig etc.) results in invalid bindings, perf issues
UE - Anim - Rigging - Control Rig - Jul 28, 2025From this UDN: [Link Removed] Suggested fix:Override PostPasteNode to perform the GUID update andAdd validation on load to strip 'invalid' copies that do not correspond to a valid pin input ...
Enabling the experimental Unit Test Framework in a project results in the Editor crashing whenever that project is opened
UE - Gameplay - Blueprint - May 2, 2016A user decided to test the experimental Unit Test Framework plugin that was included with 4.11. The user discovered that the Editor will crash whenever opening a project that has this plugin enabled ...
Use Complex as Simple isn't working for dynamic objects
UE - Gameplay - Apr 21, 2015Use Complex as Simple isn't working for dynamic objects. However, if not simulating physics, collision works correctly. Same as TTP# 229782 that wasn't moved to JIRA. ...
Crash using the 'Shot' Console Command after 'HighRes Shot 2'
Tools - Apr 7, 2015A crash occurs when using the 'HighRes Shot 2' command, followed by the 'Shot' command. The user reporting the issue made a couple of notes to avoid the crash using these steps. He mentions the cra ...
Error when zooming out in orthographic view in 5.4
UE - Editor - Jul 29, 2024In 5.4: zooming out far with the mouse wheel after setting the editor viewport to orthgraphic view triggers an ensure: ensure(InOrthoZoom >= MIN_ORTHOZOOM && InOrthoZoom <= MAX_ORTHOZOOM); Th ...
Crash when load the levelinstance what is set "LevelBehavior=Standalone" in the stanadalone game
UE - World Creation - Worldbuilding Tools - Level Instances - Jul 16, 2024A crash occurs when LevelInstance with LevelBehavior set to "Standalone" is loaded in a standalone game. Specifically, when LevelInstance is deleted by moving outside the loading range of the worldp ...
Reduced Tessellation at edge when using world displacement
UE - Graphics Features - Jan 11, 2016Adding a material to a mesh that is affected by world position offset has reduced tessellation around the meshes edges. This is seen when viewed in wireframe and is influenced based off of the angle ...
Locking a selected Actor in a Level keeps the Actor highlighted when selecting another Actor
Tools - Jan 9, 2015Locking a selected Actor in a Level keeps the Actor highlighted when selecting another Actor. ...