Unreal Engine Issues

Character Jitters at High Speed When Run Dedicated Server is Enabled

Characters are jittering in multiplayer when moving at high speeds when Run Dedicated Server is enabled. ...

Static/Skinned Mesh SPropertyEditorAsset widget performance regression

Virtual Texture Data GetNumMips reports one fewer mip than expected

FVirtualTextureBuiltData::GetNumMips() can return 1 fewer mip than it should due to a potential clamping issue at the end of FVirtualTextureBuilderDerivedInfo::InitializeFromBuildSettings() where it ...

[Enhanced Input] Edge case where bShouldBeIgnored incorrectly being reset after FlushPressedKeys is called

[Link Removed] From UDN, the steps for their repro case: Normal case: Frame N : AddMappingContext → bShouldBeIgnored=true → FlushPressedKeys → bDown=false Frame N+1: OS IE_Repeat arrives → ...

stat scenerendering not visible on mobile with VR Canvas

stat scenerendering not visible on Mobile VR with new VR Canvas Layer. Similar debug output are visible (Tested stat memory, stat rhi)  Confirmed in Main @ CL 4468496 ...

Creating Anim Montage drops a frame(s)

When creating an animation montage, it appears that frames can be lost. ...

The ConstructionScript not being called on drag

The construction script for a custom actor blueprint does not execute after drag when the scene component is selected. Tested in 4.21.2 (CL - 5660361), 4.22.1 (CL - 6063286), 4.23 (CL - 6248266) ...

Match3 crashes on device after locking and unlocking the screen on iOS

Aug 23 15:25:15 A6240 UnrealMatch3[987] <Warning>: Assertion failed: CommandEncoder.IsRenderPassDescriptorValid() [Link Removed] [Line: 700] Match3 does not resume after locking and unlocking the s ...

If PVRTexToolCLI is not executable, invalid texture data is used and crash results when launching on device

Synced the code on Windows and transfered to Mac, the file PVRTexToolCLI lost its executable permission bits... UE4 couldn't run the tool, but carried on processing anyway, processing invalid textur ...

Crash when calling capture mouse as the return value in an OnKeyDown

The editor crashes when calling an over ridden On Key down function in a widget in order to capture the mouse with the return value of the function. ...