Unreal Engine Issues
Unreal Engine Issues
Movement Tolerance for Spawn Per Unit Does Not Function
UE - Niagara - Oct 19, 2018Motion tolerance for Spawn Per Unit does not affect the particle system. Even if the vaules are set very high. Found in 4.18 CL# 3832480, 4.19 CL# 4033788, 4.20 CL# 4369336, 4.21 Preview 2 CL# 4472 ...
Packaging/launching 2D Side Scroller template for HTML5 results in Black Screen on browsers
UE - Platform - Mobile - Oct 30, 2018Packaging or Launching the 2D Side Scroller template without making any edits results in issues that differ by browser. Firefox : A black screen appears (see screenshot) Chrome : 1/4th of the scre ...
Landscape Paint Layers will not scroll to the end when using mouse wheel
UE - LD & Modeling - Terrain - Landscape - Sep 28, 2020In a normal detail panel, each element has its own SDetailSingleItemRow and are mostly uniformly sized with some exceptions of having a few bigger rows (i.e. asset pickers). However, these layers ar ...
HiResScreenshot has incorrect masking when screenshot resolution scale does not match the viewport.
UE - Rendering Architecture - RHI - Sep 6, 2021After a bit of investigation, the way to fix this would be to modify MergeMaskIntoAlpha to pass in the actual resolution scale and the requested size, and only mask the overlapping pixels. Currently ...
[MetaSounds] - If the audio output hits an extreme Gain value, the Audio Meter Widget stops responding
UE - Audio - MetaSounds - May 20, 2022It's possible to have the Audio Meter widget stop responding if you set the Gain really high. It will cease to work as long as the MetaSound window is open. Closing and reopening the MetaSound windo ...
Nanite displacement on landscapes not rendering on 5700XT
UE - Graphics Features - Nanite - Mar 27, 2024This only happens on a 5700XT, tested this on the 7900XT and the issue did not occur Initially reported on the Preview 1 forums: https://forums.unrealengine.com/t/unreal-engine-5-4-preview/1763516 ...
Inconsistent mobility when converting selected actors to a blueprint
UE - Gameplay - Blueprint - Jan 6, 2015Noticed when replying to a user on the forums (link included) When using the "Convert to Class Blueprint" feature in the level editor to create a blueprint from the selected actors, the created blu ...
Smoothing landscape removes landscape collision in smoothed areas
UE - LD & Modeling - Terrain - Landscape - Apr 27, 2016Smoothing user's landscape breaks collision, causing player to fall through the ground at points that have been smoothed. Resampling landscape fixes the error until smooth tool is used again. Regr ...
(Paper2D) Polygon Collision does not correctly rebuild when using rebuild collision node in packaged game
UE - Gameplay - Paper2D - Nov 29, 2017With tile maps, Polygon Collision does not correctly rebuild when using rebuild collision node in packaged game. This issue does not appear to be a regression. Versions Tested: Issue occurs on all ...
Flat Tessellation broken on DX12 renderer
UE - Graphics Features - Feb 13, 2018Behavior reproduced in 4.17.2 CL 3658906, 4.18.3 CL 3832480 and 4.19.P4 CL 3873914 To run the engine with DX12 I made a shortcut of the UE4Editor.exe found at D:\Epic Games\UE_4.18\Engine\Binaries\ ...