[CrashReport] Mac crash - UE4Editor-SlateCore.dylib!SWindow::IsVisible()

UE - Platform - Apple - Oct 12, 2017

This is a trending Mac crash coming out of the 4.18 previews. Most of the project titles experiencing this crash mention "AR" It is the exact same callstack and crashgroup as [Link Removed], but th ...

Incorrect Manual Focus Distance from eye dropper

UE - Anim - Sequencer - Oct 17, 2019

The Debug Focus Plane in the CineCameraActor does not appropriately respond to mouse input and position when the Manual Focus Distance is set using the eye-dropper. Tested in 4.21.2 (CL - 4753647), ...

Editor Shortcuts stop working if the editor is launched with a non-Latin-based language

Tools - Nov 4, 2019

Editor shortcuts will not work if you launch the editor with a non-Latin-based language (ex. Russian, Chinese).  The editor must be closed and restarted with English (or possibly any Latin alphabet- ...

Spline don't deform landscapes in certain setups

UE - LD & Modeling - Terrain - Landscape - Dec 26, 2019

The splines do not deform the landscape when the path is made with a straight spline. When you move a spline point to bend the road it will deform the landscape, but the deformation accuracy seems t ...

Steam API is disabled when playing in Standalone Game

UE - Online - May 11, 2020

The Steam API is disabled when playing a Standalone Game that was started using the Play button. REGRESSION: Yes Worked: 4.24.3 Binary CL-11590231 Broken: 4.25 Binary CL-13261010 I do not see this ...

fbx attribute curve import do not support correctly tangent at the start end end of the curve

UE - Editor - Content Pipeline - Import and Export - Sep 2, 2020

We are not reading all the key flags and we do not import correctly start key and end key tangent. I create a shelve but this is not the complete fix, we must do this only if we do not have fbx ket ...

Default values specified for local BP variables of type DateTime and Timespan don't actually work

UE - Gameplay - Blueprint Runtime - Nov 6, 2020

Have attached examples of this in action, including breakpoints showing the FDateTime::Ticks count as zero. Also showed that this is an issue for the existing GetYear/GetMonth/GetDay methods (and an ...

Ambient Occlusion does not function with Forward Rendering enabled

UE - Graphics Features - Feb 24, 2021

Ambient Occlusion does not seem to function when enabling Forward Rendering. I tested the level without Forward Shading and could notice a visible difference in the shadows when Ambient Occlusion wa ...

Filtering a Curve with Fourier Transform (FFT) with the Response set to Chebyshev crashes the editor

UE - Anim - Sequencer - Mar 19, 2021

When creating a Curve and filtering the keys with a Fourier Transform, the engine crashes. The engine doesn't crash when the Bake, Euler, or Simplify options. It only crashes if there are a minimum ...

Crash when reopening a project that has a Child Actor component in a BP with a WaterBody class set as the Parent Class

UE - Graphics Features - Apr 29, 2021

When adding a child actor component to a Blueprint with the Parent Class set to one of the new Water classes and then placing it in the world, the project will crash on open. This was tested with th ...