I've reproduced this crash in 4.16, 4.17, 4.18, 4.19, and Main. Per licensee: The editor crashes if distance field ambient occlusion is enabled and a viewport is resized to have zero height. Th ...
Material ambient occlusion does not work with the skylight set to movable. Setting the material to allow static lighting will fix the issue until the level is reloaded. Found in 4.19 CL# 4033788, 4 ...
Attempting to procedurally create SplineMeshComponents along the spline of a SplineComponent via a derived SplineComponent class's constructor causes the project to crash. It runs into an ensure mes ...
When copy and pasting nodes from an Actor Blueprint to an Object Blueprint the Editor stalls for a bit and an ensure occurs. This issue was reported and tested in 4.19.2 (CL-4033788). This issue ...
If a Media Player's "On End Reached" event is present in a Level Blueprint, even if it is not being used, packaging the project will fail. An error is thrown and a callstack is given. Please see the ...
It seemed to be white at 4.19, but it seems to be red at 4.20. I found out that there seems to be a cause for initialization of Mesh Attributes. As a result of fixing this, it is now displayed in wh ...
Crash repros in 4.19.2 and Main CL 4088075. Triggering the crash can be inconsistent- you may have to assign the material instance to a mesh, force shaders to recompile, save, and continue toggling ...
Placing a FunctionalTest Blueprint into a level that contains a landscape component and a sub-level that also contains a landscape component results in a crash when PIE is started. This only occurs ...
In 4.18, Buffer Visualization Modes appear very similar to their representation in Buffer Overview. In 4.19 and Main (CL 4008322) the results are very blown out. Similar issue reported in [Link Remo ...
There is a major performance drop after 4.18 when calling draw material to render target. This is an issue reported by many community members, and there seem to be additional reports with different ...