Meshs in a hidden sublevel may generate incorrect navmesh

UE - AI - Navigation - Nov 6, 2020

If the level has hidden sublevels, the regenerated navmesh result appears to have a hidden sublevel mesh placed at the origin. Apparently, the reason is that bNavigationRelevant is no longer consid ...

Assertion failed: InputOboeStream != nullptr when changing levels with Android voice enabled

UE - Audio - Jan 7, 2020

Assertion failed: InputOboeStream != nullptr when changing levels with Android voice enabled User was able to workaround the issue by replacing Audio::FAudioCaptureAndroidStream::CloseStream() wi ...

EPixelFormat::PF_R16_SINT does not render correctly for textures

UE - Rendering Architecture - RHI - Nov 18, 2019

Creating a UTexture2D the following way does not properly process gradients in the texture: ------ bool Atexture_test_actor::LoadRawFileTest( /* output */ UTexture2D*& image) { TArray<short> v ...

Available network bandwidth is too low for uncapped but slow frame rates

UE - Networking - Sep 24, 2020

The networking system has a max frame rate of 120hz by default. Inside UNetConnection::Tick it computes an estimated bandwidth by using that max frame rate, the engine's max frame rate, and the actu ...

Selecting Reimport on a virtual texture results in crash

UE - Graphics Features - Nov 14, 2019

Reimporting a virtual texture results in a crash. Tested in: 4.24P2 CL#10091930 ,  4.25 CL#10183780 ...

Deterministic cooking issue caused by ParticleModuleTypeDataGPU

UE - Niagara - Jan 18, 2021

This problem is similar to the following case. [Link Removed] [Link Removed] It seems to have been fixed in 4.16, but the licensee reported it in 4.25. ...

Lightmaps not carrying over with 'Save Current As'

UE - Graphics Features - Lumen - Jul 17, 2020

I can reproduce it, other developers reported to me too.  Not a problem in 4.22 ...

Media Textures assigned at run time are not being applied to the assigned mesh

Media Framework - Feb 21, 2020

Dynamically created media texture is not applied to assigned meshes.  Tested in:  4.23.1 CL#9631420, 4.25 CL#11574810 ...

Soft Object References set directly on parameters are not correctly referenced

UE - Gameplay - Mar 19, 2020

REGRESSION: This regressed between 4.23 and 4.24 Assets set directly in a soft object reference pin on a blueprint function are not correctly referenced. ...

VR Preview + Wireframe View Mode = Wireframe only in Left Eye

UE - Platform - XR - Dec 16, 2019

Wireframe View mode only rendering in Left Eye. Was working pre rendering-refactor (4.21) Confirmed in 4.25 MAIN @ CL 10730208 ...