Moving assets in the Editor fails to fixup references causing the project to generate errors

Tools - Mar 30, 2020

Moving assets in the Editor is very unreliable. References may or may not be fixed up. No direct error is presented or a warning about problems. Any moves of the gameinstance, string table or certai ...

Engine Crashes When Converting an Int to Float For a Map Key In Blueprints

UE - Gameplay - Blueprint Editor - Dec 11, 2019

The engine crashes when trying to automatically create a type conversion node when they are used a key for a map. Found in 4.24 CL#10570792 Reproduced in 4.25 Main CL# 10646676 ...

Overlapping Lightmap UVs Generated When Not In None LOD Group

UE - Graphics Features - Lumen - Dec 17, 2019

Overlapping lightmaps are generated when the LOD group is not the default. Setting the LOD group to None and rebuilding lighting doesn't have the same result. Found in 4.24 CL# 10570792 Reproduced ...

Single Channels From a Curve Atlas Node Does Not Remap to New Values

UE - Graphics Features - Oct 18, 2019

Single Channels from a Curve Atals Node Does Not Remap to New Values. Working as expected in 4.22 CL# 7053642 Found in 4.23 CL# 8386587, 4.24 CL# 9630693, 4.25 CL# 9615021 This is a regression. ...

Screen space reflection flickering

UE - Graphics Features - Nov 26, 2019

Flickering is occuring when using a reflection material with screen space reflection enabled. Did not start occuring until 4.19 and beyond.  Tested in: 4.23.1 CL#9631420, 4.24 P3 CL#10283392, 4 ...

Imported TTF fonts rendering unknown glyphs for common characters

Tools - Oct 28, 2019

Imported TTF fonts rendering unknown glyph for previously-working characters such as ' or ! or , or ?. In 4.21 the font was working as expected. User states that custom fonts should be forward-compa ...

Crash to desktop after creating Level Sequence with Widget Blueprint

Tools - Nov 30, 2019

Newly created Level Sequence assets cant be opened when they have been created via Editor Blueprint Widget. They are created successfully through a button click for instance, but when you try to ope ...

Enabling Fixed Frame Rate doesn't Lock the Frame Rate

UE - Rendering Architecture - RHI - Nov 19, 2019

When a project is set to use a fixed frame rate via the Project Settings it is uncapped when played in editor. Found in 4.24 Preview 2 CL#10091930 Reproduced in 4.25 Main CL#10298106 ...

Gameplay Tags Can't Be Edited Via "Bulk Edit via Property Matrix"

Tools - Dec 25, 2019

You can't edit a gameplay tag when you bulk edit via the property matrix. Found in 4.23.1 CL#10757647 Reproduced in 4.24.1 CL# 107567474.25 Main CL#10868506 ...

Construction script does not properly reset array count

UE - Gameplay - Oct 28, 2019

It appears that in UE 4.23, some specific arrays in construction scripts are no longer cleared automatically and retain references to TRASH objects from the previous construction script calls. This ...