Implied Decal Blend Modes don't account for static ignore-switch parameters in an expected way

UE - Rendering - Architecture - Sep 28, 2021

The desired behavior from a user perspective here is that they'd be able to use Static Switches in a decal master material to toggle different features and behaviors. In the above setup, if I set th ...

Differences in DistanceToNearestSurface and DistanceFieldGradient results between 4.27 and 5.0

UE - Graphics Features - Apr 27, 2022

In the UE5 case, we end up seeing very harsh lines in both the gradient and the distance to nearest surface examples whereas the results in 4.27 appear smooth.  It was also interesting to observe c ...

nDisplay - UMG widgets sync

UE - Virtual Production - nDisplay - Nov 9, 2019

As soon as the widget was visible on the node/display at least once all nodes/displays receive the button press and correctly increase the counter. Therefore it seems like the widgets are only initi ...

When running in the Editor, actor owning a UCameraTestComponent that sets DesiredView.Rotation Pitch below -90 or over 90 will attach to the Editor Camera as if it was being piloted

UE - Gameplay - Gameplay Cameras - Feb 27, 2025

When running in the Editor, actor owning a UCameraTestComponent that sets DesiredView.Rotation Pitch below -90 or over 90 will attach to the Editor Camera as if it was being piloted. The licensee re ...

PlayerController isn't tickable during pause while using the 'Set Tickable When Paused' node

UE - Gameplay - Jun 18, 2015

PlayerController isn't tickable during pause while using the 'Set Tickable When Paused' node. https://answers.unrealengine.com/questions/243791/camera-ticks-but-does-not-update.html User Descriptio ...

Cannot compile a nativized Blueprint with a function that takes an interface as an input parameter and uses it inside the function (e.g. dynamic cast to object).

UE - Gameplay - Blueprint - May 27, 2020

Issue occurs because there is a legacy code path that forces all interface parameters to be declared as 'const' in function declarations, even if CPF_ConstParm is not set in exported C++ code. This ...

Crash when opening a texture or editing its properties after stopping a preview in the material editor

UE - Rendering - Architecture - Materials - Sep 5, 2025

When a texture asset has certain properties edited, its PostEditChangeProperty() method calls to UTexture::NotifyMaterials(), which triggers a recompilation of materials that reference it in their m ...

Editing an array config property via ProjectSettings can end up editing other platform config properties.

UE - CoreTech - May 27, 2024

Platforms .ini config files can end up with incorrect data, due to how ProjectSettings manages the config data. On a Windows machine, if we open the ProjectSettings window, all the data is going to ...