Unreal Engine Issues

Particles can flicker at the end of first emitter loop when interpolated spawning is enabled

Particles flicker at the end of first emitter loop when interpolated spawning is enabled This issue does not occur if interpolated spawning is disabled. This issue does not occur for any of the su ...

Bringing up the integrated virtual keyboard on iOS 15 devices causes a crash

When the Groom asset LOD switches from Strands to cards, hair rendering is stuttered

It only happens when changing LOD from strands to cards.not in situations where changing LODs from cards to cards, cards to strands, strands to strands. The card meshes are not rendered immediately ...

heterogeneous volumes SkyLight VolScatter Intensity not working

Heterogeneous Volumes do not respect the Volumetric Scattering Intensity values when running with Lumen, but do (correctly) when rendering with the Path Tracer. ...

A camera set to Orthographic projection mode with a negative Ortho Width will crash the editor on PIE

A camera set to Orthographic projection mode with a negative Ortho Width will crash the editor on PIE. Reproduced in Main (CL-2412886) Crash Report: [Link Removed] Call Stack:<unknown module>! UE ...

Crash when removing cloth apb's assigned to asset

When removing already assigned cloth asset from a skeletal mesh it will crash the editor. I was able to reproduce this with the Owen asset from Content Examples, but was unable to get it to work fro ...

Crash when Simulating in Editor after Painting Foliage

The engine crashes when simulating in the editor after painting foliage instances using the Foliage Tool. An important thing to note is that this crash does not occur if you switch out of the 'Foli ...

[CrashReport] PhysX3_x64!physx::PxsNphaseImplementationContext::unregisterContactManager() [pxsnphaseimplementationcontext.cpp:644]

This crash is occurring in a developer's packaged project for their end-users. End-user comments are below (unique to the specific project)The game started flickering and then crashed!I set down a ...

[CrashReport] Assertion failed: TaskDataArray.Num() == Exporter->VolumetricLightmapTaskGuids.Num()

This is a trending crash coming out of the 4.18 Previews. Users have not provided any descriptions of their actions when the crash occurred, but at least two of the affected projects are being creat ...

Input Axis Mapped to 'Pinch' no longer sends Axis Value

Axis Event mapped to pinch no longer returns values. Working in 4.19 Confirmed on Android + iOS  Confirmed in MAIN 4.23 @ CL 4961509 ...