Unreal Engine Issues

Preview Rendering Levels Do Not Display Supported Optimization Viewmodes in Viewport Dropdown

When attempting to set an optimization viewmode while using a Preview Rendering Level other than Shader Model 5, the Optimization Viewmodes dropdown is missing all of its options and instead display ...

Bloated instruction counts in the material editor causing long compiles

artists are dealing with greatly increased iteration times due to long shader compiles when working in the material editor. This has regressed over time as we add more features to the point were wor ...

Reversed Animations don't play properly using Skeletal Mesh Pose and animations with Keep State in Sequencer

The bug seems to only reproduce when setting animations in sequencer and only if the animations are set to "Keep state". Setting them to "restore default" makes the reversed animation play correctly ...

D3D12 uses a lot more memory than D3D11

We’re aware of some extra memory usage in the DX12, but 100% more is more than we’ve seen! I think it’s multiple sources that is causing the increase in usage but not all are known. For example, I’v ...

[CrashReport] Linux crash - FScopeContext::FScopeContext()

This is a somewhat common Linux crash occurring in 4.17.2. (there are a few older records in 4.16.2 and 4.17.1 also, but most occur in 4.17.2) Callstack from Log[2017.10.04-14.49.42:768][ 2]LogFi ...

[CrashReport] Mac/Metal crash - Assertion failed: (PixelShader->Bindings.InOutMask

This is a low frequency but trending crash coming out of 4.18. User DescriptionsAttempting to open a copied/converted from 4.16.3 project on 4.18 preview 4. Problem arose after preview 3. Was able ...

Quality settings should not affect landscape resolution

Changing the quality settings (or having them change on you automatically in the editor) drops mips on landscape heightmap textures, which isn't desirable as it makes it look like there are collisio ...

Foliage radius does not affect other foliage assets

Setting the radius on a foliage asset does not prevent other foliage assets from being painted within that radius. Regression (no) issues (does) occur in 4.10.4 ...

Actor Enable Collision does not affect ISM

The problem was reported via UE Bug Submission. I was able to repro with their provided test project. ...

Scene Capture Cube not affected by bloom