Unreal Engine Issues

Base Pass Instruction Count increases on Compile and Save, then resets upon reopening Material

Material Base Pass Instruction Count will change from a value established when plugging in components pre-compile to a higher value on post compile, but when the material is reopened the count rever ...

Rotate Around Point Niagara Module causes jittering with Linear Force

Regression: Tested in UE5/Release-5.0, this issue also occurs meaning regression is no. The Niagara System appears to jitter whenever a force is applied after the Rotate Around Point module. If the ...

Pasting custom data floats from a text editor into a instanced static mesh component crashes the editor

When an instanced static mesh component with a material using a PerInstanceCustomData node has its data floats pasted in, the editor crashes with an "Array index out of bounds" error. The licensee w ...

Landscape weight-blended layers don't paint exclusively anymore

Changing Shadow Quality causes SingleLayerWater Materials to disappear

Regression: Tested in UE5/Release-5.0, issue is reproduceable. This issue appears to be related to the Opacity Mask of the material, as not having an Opacity Mask does not cause the material to dis ...

Material Function Instances do not show up in the Material Function Call node

This is not a regression. Tested in //UE5/Release-5.1 CL23901901. The Material Function Instance can be dragged and dropped into the Material Function Call. ...

Custom Node plugged into World Displacement cannot convert from FMaterialTessellationParameter to FMaterialPixelParameter

Custom Nodes plugged into World Displacement are yielding:Error [SM5] error X3017: 'CustomExpression1': cannot implicitly convert from 'struct FMaterialTessellationParameters' to 'struct FMaterialP ...

Setting Texture Object within Niagara fails to update texture

Based off of a saleforce ticket, it seems that reinitializing a niagara system with an updated texture, the texture does not update. The setup works correctly in 4.25, so marking as a regression. ...

Scroll Box Dragged State Persists After Input Mode Change

This is an edge case occurring when changing Input Mode while the Scroll Box is being dragged. When the Input Mode switches to Game Only, further drag actions are no longer possible. However, becaus ...

UWorldPartitionSubsystem::IsStreamingCompleted returning the wrong query result when all cells and actors in location are in DataLayers

Context: Data Layers is a system within World Partition used to organize Actors both in the Editor and at runtime. It allows for the user to dynamically load and unload layers in the Editor to help ...