t.MaxFPS 0 locks FPS to 120 instead of unlocking it in Viewport

Tools - Nov 7, 2017

When unlocking FPS in Viewport it defaults to 120 instead of potential max FPS. If you do this during Launch the 't.MaxFPS 0' or 't.MaxFPS -1' commands unlock the FPS to the max the GPU allows in th ...

Actors attached to editor only actors have incorrect location in PIE

UE - World Creation - Worldbuilding Tools - World Partition - Jan 19, 2024

Packaging failed with disabled plugin

UE - Foundation - Cpp Tools - Oct 9, 2018

Disabling any plugin causes packaging failure. No repro in 4.19 Also occurring when Disabling all platforms except for windows and changing configuration from development to shipping. ...

PIE window does not match what was set in the New Viewport Resolution setting

Tools - Oct 24, 2019

Setting the resolution of PIE to 4K Ultra HD results in the new PIE window going very far out of the bounds of 4K. If you are using two monitors the PIE window will bleed over a good bit into the ot ...

[CrashReport] UE4Editor_AssetRegistry!FPackageReader::operator<<() [packagereader.cpp:479]

UE - Foundation - Core - Aug 21, 2017

This is a regular and longstanding crash that has occurred since at least the 4.14 release. The majority of the crashes occur on non-vanilla builds, although there have been a few vanilla crashes. ...

Interface function has the incorrect pin type if referencing self

UE - Gameplay - Blueprint - Sep 1, 2015

Interface function has the incorrect pin type if referencing self User Description: I have an interface that requires an array of its own interfaces as output. I have that array of interface as a ...

FVulkanDynamicRHI::RHIReadSurfaceData​ incorrect for FLinearColor​.

UE - Rendering Architecture - RHI - Mar 4, 2024

The FLinearColor implementation for FVulkanDynamicRHI is incorrect. FLinearColor stores 32 bit floats in linear space, while FColor stores 8 bit integers encoded with sRGB applied. The implementatio ...

Add and Renaming collapsed graphs in functions breaks refs to local vars

UE - Gameplay - Blueprint Compiler - Nov 6, 2020

When creating a class (of any kind i.e. an actor), when a collapsed graph is compiled the ref breaks when adding or renaming the graph. ...

Partially loaded level instance becomes fully loaded after editing nested level instance

UE - World Creation - Worldbuilding Tools - Level Instances - Sep 10, 2024