Unreal Engine Issues
Unreal Engine Issues
Arithmetic assignment operators (e.g. +=, *=) in Niagara inputs are applied twice .
UE - Niagara - Jan 9, 2024Arithmetic assignment operators seem to be applied twice when committed in the Niagara stack. This occurs when entering *= 2.0 for example into a float input. This may be the result of the SNiagar ...
Editor crashes opening MyCharacter BP after converting to 4.5
UE - Gameplay - Blueprint - Nov 4, 2014On a Mac, when opening a custom character blueprint from a project that has been converted to 4.5 from a previous version of the engine, the engine immediately crashes. ...
Particle Parameter Won't Update If Used With EventReceiver Spawn
UE - Niagara - Jan 26, 2017Particle Float Parameter for the EventReceiver Spawn doesn't update when accessed via blueprint it just retains whatever default value is assigned in cascade. I've confirmed other modules work as ex ...
Graphical issues in editor after changing monitor resolution on Linux
UE - Platform - Linux - Feb 23, 2017Changing the monitor resolution on Linux causes Editor windows to show graphic errors. ...
Forward Rendering Lightmap Density view flicker
UE - Graphics Features - Aug 20, 2019The shaders flicker when in Lightmap Density viewmode after enabling Instanced Stereo Rendering in Project Settings > Engine > Rendering > VR Tested in 4.21.2 (CL - 4753647) 4.22.3 (CL - 7053647), ...
Coordinate indicator disappears when entering landscape editing mode
Tools - Oct 24, 2016Coordinate indicator disappears when entering landscape editing mode. The indicator disappears after switching to landscape mode in the editor Note: This appears to work in 4.13.2 ...
8.1 Advanced asset creation selection is flickering a duplicate selection
Tools - Apr 26, 2017Workaround Seemed that closing and reopening the project resolves this issue This is NOT a regression as it happens in 4.15.2 ...
Volumetric Lightmap Holes Appear Every Fifth Build
UE - Graphics Features - Sep 11, 2018Volumetric lightmap holes appear every fifth build. Found in 4.19 CL# 4033788, 4.20 CL# 4302132, and 4.21 CL# 4348893 ...
SetActorLabel() is slow on Landscapes
UE - Graphics Tools - Terrain - Landscape - Jan 7, 2025I've noticed calling SetActorLabel() on a Landscape will call PostEditPropertyChanged() which causes the Landscape Components to regenerate all collisions. As per the repro, this can take a long tim ...
Importing Mesh with "Import Animations" enabled crashes editor.
OLD - Anim - Nov 13, 2015After importing a mesh with "Import Animations" enabled the editor crash's. Importing only the mesh does not crash the engine. Importing animation separately and assigning to Skeletal mesh on import ...