Unreal Engine Issues
Unreal Engine Issues
Water: Data race calling MarkOwningWaterZoneForRebuild from FWaterBodyInfoMeshSceneProxy constructor during concurrent render state creation
UE - Graphics Tools - Terrain - Water - Oct 14, 2026Summary The FWaterBodyInfoMeshSceneProxy constructor (WaterBodyInfoMeshComponent.cpp) calls UWaterBodyComponent::MarkOwningWaterZoneForRebuild(). The proxy is created from CreateRenderState_Concurren ...
Water: WaterZone GPU data packed densely in FWaterViewExtension::UpdateGPUBuffers but indexed by sparse WaterZoneIndex, causing water to disappear
UE - Graphics Tools - Terrain - Water - Oct 14, 2026Summary Water can sporadically disappear in World Partition maps that have multiple spatially loaded AWaterZone actors. FWaterViewExtension::UpdateGPUBuffers() builds the WaterZoneData and WaterZone ...
Water ripples stop occurring during long-distance movement in WaterBody with bEnableLocalOnlyTessellation enabled
UE - Graphics Tools - Terrain - Water - Jul 22, 2026Substrate Single Layer Water material fails to compile in blendable Gbuffer mode when using the Single Layer Water BSDF node
UE - Graphics Tools - Terrain - Water - Jun 16, 2026When using Substrate in Blendable GBuffer mode, a material with the single layer water BSDF node produces a shader compiler error : MaterialEditorStats: Error: [SM6] Shader debug info dumped to: "\ ...
WP: Water surfaces are missing from the Minimap textures.
UE - Graphics Tools - Terrain - Water - Jan 8, 2026The problem is caused by FWaterViewExtension::ShouldHaveWaterZoneViewData that prevents the water data from being updated in SceneCaptures. (re: FWaterViewExtension::SetupView) Removing the call to ...
Water Body Custom generates Map Check Warnings
UE - Graphics Tools - Terrain - Water - Jun 26, 2025From licensee: Water Body Custom Actors generate this warning during Map Check: WaterBodyCustom_UAID_507C6F36B9215C5B02_1871778061 Static mesh actor has NULL StaticMesh property. To reproduce, si ...
Water body actor casts static shadow
UE - Graphics Tools - Terrain - Water - Jan 14, 2025WaterBody Actors will cast static shadows in built lighting even if their Cast Shadow options are disabled. ...
Long thin splines with wide tangents do not generate correct collision geometry
UE - Graphics Tools - Terrain - Water - Oct 24, 2024[Image Removed] [Image Removed] ...
Ocean spline impacting landscape way outside of its bounds
UE - Graphics Tools - Terrain - Water - Oct 4, 2024From licensee: "[...] it seems that regardless of our settings and how far away the control spline is from the landscape edge, one corner of the landscape will always be impacted by the falloff and ...